Use a relative pronoun preceded by a preposition to combine each pair of the sentences below:

1/ The teacher is Mr John. We studied with him last year.

-> The teacher with whom we studied last year is Mr John.

2/Many diseases are no longer dangerous. People died of them years ago.

-> Many diseases, which people died of years ago, are no longer dangerous.

3/The problem has been discussed in class. We are very intersted in it.

-> The problem, which we are very interested in, has been discussed in class.

4/ Do you see my pen? I have just written my lesson with it.

-> Do you see my pen which I have just written my lesson with?

5/ I like standing at the window. I can see the park from this window.

-> I like standing at the window from which I can see the park.

6/ We are crossing the meadow. We flew kites over it in our childhood

-> We are crossing meadow over which we flew kites in our childhood.

7/ They are repairing the tubes. Water is brought into our house through the tubes

-> They are repairing the tubes through which water is brought into our house.

8/ In the middle of the village there is a well. The villagers take water from this well to drink.

-> In the middle of the village there is a well from which the villagers take water to drink.

9/ The middle aged man is the director. My father is talking to him.

-> The middle aged man, whom my father is talking to, is the director.

10/ This is a rare opportunity. You should take advantage of it to get a better job.

-> This is a rare opportunity which you should take advantage of to get a better job.

Use a relative pronoun preceded by a preposition to combine each pair of the sentences below:

1/ The teacher is Mr John. We studied him last year.

=> The teacher with whom we studied last year is Mr John.

2/Many diseases are no longer dangerous. People died of them years ago.

=> Many diseases of which people died years ago are no longer dangerous.

3/The problem has been discussed in class. We are very intersted in it.

=> The problem in which we are very interested has been discussed in the class.

4/ Do you see my pen? I have just written my lesson with it.

=> Do you see my pen, with which I've just written the lesson.

5/ I like standing at the window. I can see the park from this window.

=> I like standing at the window from which I can see the park.

6/ We are crossing the meadow. We flew kites over it in our childhood

=> We are crossing the meadow over which we flew kites in our childhood.

7/ They are repairing the tubes. Water is brought into our house through the tubes

=> They are repairing the tubes through which water is brought into our house.

8/ In the middle of the village there is a well. The villager take water from this well to drink.

=> In the middle of the village there is a well from which the villagers take water to drink.

9/ The middle aged man is the director. My father is talking to him.

=> The middle-aged man to whom my father is talking is the director

10/ This is a rare oppurtunity. You should take advatage of it to get a better job.

=> This is a rare opportunity of which you should take advantage to get a better job.

Use a relative pronoun preceded by a preposition to combine each pair of the sentences below:

1/ The teacher is Mr John. We studied him last year.

=> the teacher with whom we studied last year is Mr Pike

2/Many diseases are no longer dangerous. People died of them years ago.

=> Many diseases of which people died many years ago are no longer dangerous

3/The problem has been discussed in class. We are very intersted in it.

=> The problem in whichwe are very interested has been discussed in class.

4/ Do you see my pen? I have just written my lesson with it.

=> Do you see my pen with which I have just written the lesson

5/ I like standing at the window. I can see the park from this window.

=> I like standing at the window from which I can see the park

6/ We are crossing the meadow. We flew kites over it in our childhood

=> We are crossing the meadow over which we flew kites in our childhood.

7/ They are repairing the tubes. Water is brought into our house through the tubes

=> They are repairing the the tubes through which Water is brought into our house

8/ In the middle of the village there is a well. The villager take water from this well to drink.

=> In the middle of the village there is a well which the villagers take water to drink.

9/ The middle aged man is the director. My father is talking to him.

=> The middle-aged man to whom My father is talking is the director

10/ This is a rare oppurtunity. You should take advatage of it to get a better job.

=> This is a rare opportunity which you should take advantage of to get a better job.

1. The teacher is Mr Pike. We studied with him last year.

=> The teacher who we studied with last year is Mr Pike

2. The problem has been discussed in class. We are very interested in it.

=> The problem which we are ver interested in has been discussed in class

3. Many diseases are no longer dangerous. People died of them years ago.

=> Many diseases, which people died of them years ago, are no longer dangerous

4. Do you see my pen? I have just written the lesson with it.

=> Do you see my pen which i have just writeen the lesson with?

5. I like standing at the window. I can see the park from this window.

=> I like standing at the window where I can see the park

6. We are crossing the meadow. We flew kites over it in our childhood.

=> We are crossing the meadow where we flew kites in our childhood

7. They are repairing the tubes. Water is brought into our house through the tubes.

=> They are repairing the tubes where water is brought into our house

8. In the middle of the village there is a well. The villagers take water from this well to drink.

=> In the middle of the village there is a well where the villagers take water to drink

9. The middle-aged man is the director. My father is talking to him.

=> The middle-aged man whom my father is talking to is the director

10. This is a race opportunity. You should take advantage of it to get a better job.

=> This is a race oppotunity which you should take advantage of to get a better job

11. The boy is my cousin. You made fun of him.

=> The boy who you made fun of is my cousin

12. This matter is of great importance. You should pay attention to it.

=> This matter, which you should pay attention to, is of great importance

13. The woman lives next door to me. You gave place to her on the bus.

=> The woman who you gave place to on the bus lives next door to me

14. This snake is venomless. You are afraid of it.

=> This snake, which you are afraid of, is venomless

15. The examination lasted two days. I was successful in this examination.

=> The examination which I was successful in lasted two days

16. These children are orphans. She is taking care of these children.

=> These children, who she is taking care of, are orphans

17. The two young men safe not good persons. You are acquainted with them.

=> The two young men whom you are acquainted with safe not good person

18. This is a result of our work. I'm pleased with it.

=> This is a result of our work, which I'm please with

19. There is a "No Parking" sign. I do not take notice of it.

=> There is a " No parking" sign which I do not notice of

20. Mr Brown is the man. I'm responsible to him for my work.

=>  Mr Brown is the man who I'm responsible to for my work

bạn tham khảo nhé

A4 : Combine sentence using : Giới Từ + Whom/Which

1. The movie was interesting . We went to it .

The movie to which we went was interesting
2. I met the people . You told me about them .

i met the people about whom you told me
3. I couldn't understand the woman . I talked to her on the phone .
I couldn't understand the woman to whom I talked on the phone
4. I want to tell you about the party . I went to it last night .
I want to tell you about the party to which I went last night
5. The music was gentle . We listened to it last night .
The music to which we listened last night was gentle .
6. Alice likes the foreign family . She is living with them .
Alice likes the foreign family with whom she is living
7 * . The market has refresh vegetables . I usually go to it .
The market to which i usually go has refresh vegetables
8. The man is over there. I told you about him.
The man about whom I told you is over there
9. The film is fantastic . They are talking about it .
The film about which they are talking is fantastic
10. She's the nurse . We gave the flowers to her .
the woman to whom we gave the flowers is the nurse
11 * . We are speaking to the man . The man was our new history teacher .
The man to whom we are speaking was our new history teacher .
12. The teacher is Mr Pike . We studied with him last year .
The teacher with whom we studied last year is Mr Pike.
13. We are very interested in the problem . It has been discussed in class .
the problem which we are very interested in has been discussed in class .
14. Lung cancer is very dangerous . Million of people died of it .
Lung cancer of which million of people died is very dangerous
15. I like standing at the window . I can see the park from the window .
I like standing at the window from which I can see the park
16. The woman lives next door to me . You gave place to her on the bus .
The woman to whom you gave place on the bus lives next door to me
17. The examination lasted 2 days . I was successful in this exams .
The examination in which i was successful lasted 2 days
18. This is the result of our work . I'm pleased with it .
This is the result of our work with which I'm pleased
19. Mr Brown is the man . I'm responsible to him for my work .
Mr Brown is the man to whom I'm responsible for my work .
20. This snake is dangerous . I'm afraid of it .
This snake of which i am afraid is dangerous
21. There are a number of factors . We have no control over them .
There are a number of factors over which we have no control
22. The picture was beautiful . She was looking at it .
The picture at which she was looking was beautiful
23. That's the woman . John used to be married to her .
That's the woman to whom John used to be married
24 * . My sister has 2 daughters . I often have to look after them .
My sister has 2 daughters whom I often have to look after
25 * . This is the book . I'm looking for it.
This is the book which I'm looking for
26. The boy fell in love with the girl . She left him after a few weeks .
the girl with whom the boy fell in love left him after a few weeks .
B1 : Fill in each gap with suitable relative pronoun : which , that , whose , whomor who :

1. Stop him . He's the man ____who___ stole my wallet .

2. There are many people ___who___ are living in very poor condition .

3. I've ever read the book ___that____ Huong gave me yesterday .

4. The man ___whom__ I saw last weekend said something totally different.

5. They have invented a television set ___that___ is small as a watch .

6. This is the building __which____ was destroyed badly in the fire last night .

7. I'm talking about Tom, ___who___ is really friendly.

8. The boy ___whose___ sister is in my class can speak Japanese and Korean languages .

9. The dictionary ____which____ is on the table belongs to Long .

10. He wore a hat ___which____ made him look like a cowboy .

11. The gentleman ___who___ gave him the picture was his old teacher .

12. Mr David , __who_____ comes from England , has never been to Vietnam .

13. Mr David , ___whose____son studies with us , has never been to Vietnam .

14. A bricklayer is a person ____who__ builds houses .

15. Peter couldn't come to the party last night , __which___ was really a pity .

16. We visited children ___whose____ parents are dead .

17. Do you have a good relationship with the person ___who___ lives next door to you .

18. The student __who____ did this exercise might be very intelligent.

19. I'll catch the train ___which___ leaves at 10 am .

20. Ly Duc ,__who_____ won 2 gold medal at the Games , comes from Vietnam .

21. He can't swim , ___which___ makes me surprised.

22. We are visiting Ha Long , __which____ is in the north of Viet Nam .

23. I'm staying with the boy ___whose___ brother looks very handsome.

24. He talked about the books and writers __that_____ made us bored .

25. This is the photo ___which____ was taken yesterday .

26. Henry , __whom___ you'll met tomorrow , is also a member of the board .

27. Can you answer the questions __which____ I ask you ?

28. The lady __whose___ son went on a picnic with us last weekend is a teacher at our school .

29. The woman __whose____ book I borrowed is very generous .

30. He is the only friend ___that__ I like .

A4 : Combine sentence using : Giới Từ + Whom/Which


1. The movie was interesting . We went to it .

The movie which we went to it was interesting .
2. I met the people . You told me about them .
=> I met the people which you told me about them.
3. I couldn't understand the woman . I talked to her on the phone .
=> I couldn't understand the woman which I talked to her on the phone .
4. I want to tell you about the party . I went to it last night .
=> I want to tell you about the party which I went to last night .
5. The music was gentle . We listened to it last night .
=> The music which we listened to was gentle last night .
6. Alice likes the foreign family . She is living with them .
=> Alice likes the foreign family which she is living with .

7 * . The market has refresh vegetables . I usually go to it .
=> The market which I usually go to has refresh vegetables .
8. The man is over there. I told you about him.
=> The man which I told you about is over there.
9. The film is fantastic . They are talking about it .
=> The film which is they are talking about fantastic .
10. She's the nurse . We her .
=> The one who we gave the flowers to is a nurse.
11 * . We are speaking to the man . The man was our new history teacher .
=> The man who we are speaking to was our new history teacher .
12. The teacher is Mr Pike . We studied with him last year .
=> The teacher which we studied with last year is Mr Pike.
13. We are very interested in the problem . It has been discussed in class .
=> We are very interested in the problem which has been discussed in class .
14. Lung cancer is very dangerous . Millions of people died of it .
=> Lung cancer is very dangerous which millions of people died.
15. I like standing at the window . I can see the park from the window .
=> I like standing at the window . I can see the park from the window .
16. The woman lives next door to me . You gave place to her on the bus .
=> The woman which you gave place to her on the bus lives next door to me .
17. The examination lasted 2 days . I was successful in this exams .
=> The examination which I was successful in lasted 2 days .
18. This is the result of our work . I'm pleased with it .
=> I'm pleased with which the result of our work .
19. Mr Brown is the man . I'm responsible to him for my work .
=> Mr Brown is the man which I'm responsible to him for my work .
20. This snake is dangerous . I'm afraid of it .
=> This snake which I'm afraid of is dangerous.
21. There are a number of factors . We have no control over them .
=> There are a number which we have no control over of factors .
22. The picture was beautiful . She was looking at it .
=> . The picture which she was looking at was beautiful .
23. That's the woman . John used to be married to her .
=> That's the woman . John used to be married to .
24 * . My sister has 2 daughters . I often have to look after them .
=> My sister has 2 daughters which I often have to look after .
25 * . This is the book . I'm looking for it.
=> This is the book which I'm looking for .
26. The boy fell in love with the girl . She left him after a few weeks .

ð The boy fell in love with the girl which left him after a few weeks .

B1 : Fill in each gap with suitable relative pronoun : which , that , whose , whom or who :

1. Stop him . He's the man ____WHO___ stole my wallet .

2. There are many people ___WHO___ are living in very poor condition .

3. I've ever read the book ____WHICH___ Huong gave me yesterday .

4. The man __WHICH___ I saw last weekend said something totally different.

5. They have invented a television set ___WHICH___ is small as a watch .

6. This is the building ___WHICH___ was destroyed badly in the fire last night .

7. I'm talking about Tom, ___WHO___ is really friendly.

8. The boy __WHOSE____ sister is in my class can speak Japanese and Korean languages .

9. The dictionary ____WHICH____ is on the table belongs to Long .

10. He wore a hat ____WHICH___ made him look like a cowboy .

11. The gentleman ___WHO___ gave him the picture was his old teacher .

12. Mr David , ____WHO___ comes from England , has never been to Vietnam .

Use a Relative pronoun preceded by a preposition to combine each pair of sentences below.

1. The teacher is Mr Pike. We studied with him last year.

=> The teacher who we studied with last year is Mr Pike

2. The problem has been discussed in class. We are very interested in it.

=> The problem which we are ver interested in has been discussed in class

3. Many diseases are no longer dangerous. People died of them years ago.

=> Many diseases, which people died of them years ago, are no longer dangerous

4. Do you see my pen? I have just written the lesson with it.

=> Do you see my pen which i have just writeen the lesson with?

5. I like standing at the window. I can see the park from this window.

=> I like standing at the window where I can see the park

6. We are crossing the meadow. We flew kites over it in our childhood.

=> We are crossing the meadow where we flew kites in our childhood

7. They are repairing the tubes. Water is brought into our house through the tubes.

=> They are repairing the tubes where water is brought into our house

8. In the middle of the village there is a well. The villagers take water from this well to drink.

=> In the middle of the village there is a well where the villagers take water to drink

9. The middle-aged man is the director. My father is talking to him.

=> The middle-aged man whom my father is talking to is the director

10. This is a race opportunity. You should take advantage of it to get a better job.

=> This is a race oppotunity which you should take advantage of to get a better job

11. The boy is my cousin. You made fun of him.

=> The boy who you made fun of is my cousin

12. This matter is of great importance. You should pay attention to it.

=> This matter, which you should pay attention to, is of great importance

13. The woman lives next door to me. You gave place to her on the bus.

=> The woman who you gave place to on the bus lives next door to me

14. This snake is venomless. You are afraid of it.

=> This snake, which you are afraid of, is venomless

15. The examination lasted two days. I was successful in this examination.

=> The examination which I was successful in lasted two days

16. These children are orphans. She is taking care of these children.

=> These children, who she is taking care of, are orphans

17. The two young men safe not good persons. You are acquainted with them.

=> The two young men whom you are acquainted with safe not good person

18. This is a result of our work. I'm pleased with it.

=> This is a result of our work, which I'm please with

19. There is a "No Parking" sign. I do not take notice of it.

=> There is a " No parking" sign which I do not notice of

20. Mr Brown is the man. I'm responsible to him for my work.

20: Mr Brown is the man who I'm responsible to for my work

Như vậy à! Cách của pạn đây à?

Cách 1:

1. The teacher with whom we studied last week is Mr Mike.
2. The problem in which we are very intersted has been discussed in class.
3. Many diseases of which people died many years ago are no longer dangerous.
4. Do you see my pen, with which I have just written?
5. I like standing at the window from which I can see the part .
6. We are crossing the meadow over which we flew kites in our childhood.
7. They are repairing the tubes through which water is brought into our house
8. In the middle of the village there is a well from which the villagers take water to drink.
9.This is a race opportunity of which You should take advantage to get a better job.
10. The middle-aged man, to whom my father is talking, is the director
11. The boy of whom you made fun is my cousin.
12. This matter, to which you should pay attention, is of great importance.
13. The woman to whom you gave a place on the bus lives next door to me.
14. This snake, of which you are afraid, is not venomous.
15. The examination in which I was successful lasted two days.
16. These children, of whom she is taking care, are orphans.
17. The two young men, with whom you are acquainted, are not good persons.
18. This is a result of our work, with which I’m pleased
19. There is a “No Parking” sign, of which I do not take notice
20. Mr. Brown is the man to whom I’m responsible for my work.

Cách 2: Tham khảo links:

Câu hỏi của Thương Phạm - Tiếng anh lớp 9 | Học trực tuyến

Good luck!

Làm 10/19 câu thôi nhé! Những câu còn lại làm tt.

2. The problem ,which We are very interested in ,has been discussed in class

3. Many diseases which People died of them years ago are no longer dangerous.

4. Do you see my pen which I have just written the lesson with ?

5. I like standing at the window which I can see the park from.

6. We are crossing the meadow where we flew kites over in our childhood.

7. They are repairing the tubes where water is brought into our house through

8. In the middle of the village there is a well which The villagers take water from this well to drink.

9. The middle-aged man who My father is talking to is the director

10. This is a race opportunity which You should take advantage of to get a better job.

11. The boy,who You made fun of, is my cousin.

OMG! Sáng nay mk mới làm một bài gồm 30 câu đề bài như thế này luôn! Đánh đến gãy cả tay!

Use a Relative pronoun preceded by a preposition to combine each pair of sentences below.

1. The teacher is Mr Pike. We studied with him last year.

Ex: The teacher with whom we studied last year is Mr Pike.

2. The problem has been discussed in class. We are very interested in it.

\(\Rightarrow\) The problem which we are very interested in has been discussed in class.

3. Many diseases are no longer dangerous. People died of them years ago.

\(\Rightarrow\) Many diseases which people died of them years ago are no longer dangerous.

4. Do you see my pen? I have just written the lesson with it.

\(\Rightarrow\) Do you see my pen which I have just written the lesson with?

5. I like standing at the window. I can see the park from this window.

\(\Rightarrow\) I like standing at the window which I can see the park from.

6. We are crossing the meadow. We flew kites over it in our childhood.

\(\Rightarrow\) We are crossing the meadow where we flew kites over in our childhood.

7. They are repairing the tubes. Water is brought into our house through the tubes.

\(\Rightarrow\) They are repairing the tubes where water is brought into our house through.

8. In the middle of the village there is a well. The villagers take water from this well to drink.

\(\Rightarrow\) In the middle of the village there is a well which The villagers take water from this well to drink.

9. The middle-aged man is the director. My father is talking to him.

\(\Rightarrow\) The middle-aged man, who my father is talking to, is the director.

10. This is a race opportunity. You should take advantage of it to get a better job.

\(\Rightarrow\) This is a race opportunity which You should take advantage of to get a better job.

11. The boy is my cousin. You made fun of him.

\(\Rightarrow\) The boy who you made fun of is my cousin.

12. This matter is of great importance. You should pay attention to it.

\(\Rightarrow\) This matter, which you should pay attention to, is of great importance.

13. The woman lives next door to me. You gave place to her on the bus.

\(\Rightarrow\) The girl whom you gave place to on the bus lives next door to me.

14. This snake is venomless. You are afraid of it.

\(\Rightarrow\) This snake, which you are afraid of, is not venomous.

15. The examination lasted two days. I was successful in this examination.

\(\Rightarrow\) The examination in which I was successful lasted two days.

16. These children are orphans. She is taking care of these children.

\(\Rightarrow\) These children, whom she is taking care of, are orphans.

17. The two young men safe not good persons. You are acquainted with them.

\(\Rightarrow\) The two young men, whom you are acquainted with, are not good persons.

18. This is a result of our work. I'm pleased with it.

\(\Rightarrow\) This is a result of our work, which I’m pleased with.

19. There is a "No Parking" sign. I do not take notice of it.

\(\Rightarrow\) There is a “No Parking” sign, which I do not take notice of.

20. Mr Brown is the man. I'm responsible to him for my work.

\(\Rightarrow\) Mr. Brown is the man whom I’m responsible to for my work.

Good luck!

The officer wasn't very friendly. He spoke to him yesterday

=>The officer to  who/whom/that I spoke to yesterday wasn't very friendly.

Many diseases are no longer dangerous. People died of the years ago

=>Many diseases of that people died are no longer dangerous.

The boy is my cousin. You made fun of him

=>The boy of whom you made fun is my cosin.

The problem has been discussed in class. we are interested in it

=> The problem in that we interested about was discussed in class

The manager has just announced his retirement. We have all depended on him so much

=> The manager has announced his retirement, on which we have all depended heavily.

I must thank the people . I got a present from them

=> I must thank the people whom I got a present from

Do you see my pen? I have just written the lesson with it 

=>Do you see the pen which I have just written with?

This is the result of our work. I'm pleased with it 

=> This is the result of our work which I pleased with.

The man that we are talking is a famous writer

=> The man about  whose son is being talked to.

II- Use a relative pronoun/ adverb to combine each pair of the sentences below.

1. You sent me a present. Thank you very much for it.

Thank you very much for the present which you sent me
2. Romeo and Juliet were lovers. Their parents hated each other.

Romeo and Juliet whose parents hated each other were lovers.
3. This is Mrs. Jones. Her son won the championship last year.

This is Mrs. Jones whose son won the championship last year.
4. This is the house. We often stay in this house in the summer.

This is the house where we often stay in the summer.
5. That was the time. He managed the enterprise at that time.

That was the time when he managed the enterprise
6. I was sitting in a chair. It suddenly collapsed.

I was sitting in the chair which suddenly collapsed.
7. This is the story of a man. His wife suddenly loses her memory.

This is the story of the man whose wife suddenly loses her memory.
8. Charlie Chaplin died in 1977. His films amused millions of people in the world.

Charlie Chaplin whose films amused millions of people in the world died in 1977
9. Please post these letters. I wrote them this morning.

Please post these letters which I wrote this morning.
10. The building is the church. Its tower can be seen from afar.

The building is the church whose tower can be seen from afar.
11. I’ll show you the second-hand bookshop. You can find valuable books in this shop.

I’ll show you the second-hand bookshop in which you can find valuable books
12. The police want to know the hotel. Mr. Bush stayed at this hotel two weeks ago.

The police want to know the hotel at which Mr. Bush stayed two weeks ago.
13. The reasons are basic grammatical ones. I’m scolded by the teacher fro these reasons.

The reasons why I’m scolded by the teacher are basic grammatical ones
14. I have not decided the day. I’ll go to London on that day.

I have not decided the day when I’ll go to London
15. The airport is the most modern one. We are going to arrive at this airport.

The airport at which we are going to arrive is the most modern one
16. She doesn’t want to speak to the cause. She divorced her husband for this cause.

She doesn’t want to speak to the cause for which/why She divorced her husband
17. He doesn’t want to sell the house. He was born in this house.

He doesn’t want to sell the house in which he was born
18. The teacher is Mr. Pike. We studied with him last year.

The teacher whom We studied with last year is Mr. Pike
19. The problem has been discussed in class. We are very interested in it

The problem which we are very interested in has been discussed in class
20. Many diseases are no longer dangerous. People died of them years ago.

Many diseases which people died of years ago are no longer dangerous
21. Do you see my pen? I have just written the lesson with it.

Do you see my pen which I have just written the lesson with ?
22. I like standing at the windows. I can see the park from this window.

I like standing at the windows from which I can see the park
23. The boy is my cousin. You made fun of him

The boy whom you made fun of is my cousin
24. This is rare opportunity. You should take advantage of it to get a better job.

This is rare opportunity of which You should take advantage to get a better job.
25. This matter is of great importance. You should pay attention.

This matter is of great importance which You should pay attention.

II- Use a relative pronoun/ adverb to combine each pair of the sentences below.

1. You sent me a present. Thank you very much for it.

-> You sent me a present for which I am very thankful for you.
2. Romeo and Juliet were lovers. Their parents hated each other.

-> Romeo and Juliet, whose parents hated each other, were lovers.
3. This is Mrs. Jones. Her son won the championship last year.

-> This is Mrs. Jones whose son won the championship last year.
4. This is the house. We often stay in this house in the summer.

-> This is the house where we often stay in the summer.
5. That was the time. He managed the enterprise at that time.

-> That was the time when he managed the enterprise.
6. I was sitting in a chair. It suddenly collapsed.

-> I was sitting in a chair which suddenly collapsed.
7. This is the story of a man. His wife suddenly loses her memory.

-> This is the story of a man whose wife suddenly loses her memory.
8. Charlie Chaplin died in 1977. His films amused millions of people in the world.

-> Charlie Chaplin, whose films amused millions of people in the world, died in 1977.

9. Please post these letters. I wrote them this morning.

-> Please post these letters which I wrote this morning.
10. The building is the church. Its tower can be seen from afar.

-> The building, whose tower can be seen from afar, is the church.
11. I’ll show you the second-hand bookshop. You can find valuable books in this shop.

-> I'll show you the second-hand bookshop where you can find valuable books.
12. The police want to know the hotel. Mr. Bush stayed at this hotel two weeks ago.

-> The police want to know the hotel where Mr. Bush stayed two weeks ago.

13. The reasons are basic grammatical ones. I’m scolded by the teacher for these reasons.

-> The reasons, for which I'm scolded by the teacher, are basic grammatical ones.
14. I have not decided the day. I’ll go to London on that day.

-> I have not decided the day when I'll go to London.
15. The airport is the most modern one. We are going to arrive at this airport.

-> The airport, where we are going to arrive, is the most modern one.

16. She doesn’t want to speak to the cause. She divorced her husband for this cause.

-> She doesn't want to speak about the cause why she divorced her husband.

17. He doesn’t want to sell the house. He was born in this house.

-> He doesn't want to sell the house where he was born.
18. The teacher is Mr. Pike. We studied with him last year.

-> The teacher, whom we studied with last year, is Mr. Pike.
19. The problem has been discussed in class. We are very interested in it

-> The problem, which we are very interested in, has been discussed in class.

20. Many diseases are no longer dangerous. People died of them years ago.

-> Many diseases, which people died of years ago, are no longer dangerous.
21. Do you see my pen? I have just written the lesson with it.

-> Do you see my pen which I have just written the lesson with?
22. I like standing at the windows. I can see the park from this window.

-> I like standing at the windows which I can see the park from.
23. The boy is my cousin. You made fun of him

-> The boy, who you made fun of, is my cousin.
24. This is rare opportunity. You should take advantage of it to get a better job.

-> This is rare opportunity of which you should take advantage to get a better job.
25. This matter is of great importance. You should pay attention.

-> This matter, which you should pay attention to, is of great importance.