1 I want to know if acupuncture is a risky medical procedure.

2 I want to know whether the needles are made of stainless steel or some other metal.

3 I want to know if the needles hurt when they are inserted.

4 I want to know whether the effectiveness of acupuncture in relieving back pain has ever been documented.

5 I want to know if acupuncture can strengthen the immune system.

6 I want to know if acupuncture uses the body's energy to promote healing.

7 I want to know whether you studied acupuncture in China or in the United States.

8 I want to know if you have ever used acupuncture during an operation.

#\(yGLinh\)

He worked for a woman who used to be an artist

Trong câu này thì cả hai câu có từ she và woman cùng chỉ một người nên ta thay she thành đại từ quan hệ who vì she ở câu thứ hai làm chủ ngữ

4. The young woman who lives next door is very kind to my family.

=> The young woman living next door is very kind to my family.
5. We go to school regularly. This makes our teacher happy.

=>  We go to school regularly, which makes our teacher happy.
6. Benzene, which was discovered by Faraday, became the starting point in the manufacture of many dyes, perfumes and explosives.

=>  Benzene, discovered by Faraday, became the starting point in the manufacture of many dyes, perfumes and explosives.
7. Most of the classmates couldn't come. He invited them to the birthday party

=> Most of the classmates whom he invited to the birthday party couldn't come. 
8. The church is over 500 years old. Our class visited it last summer.

=> The church which our class visited it last summer is over 500 years old.
9. The song says about the love of two young students. She is singing the song.

=> She is singing the song which says about the love of two young students. 
10. I know the man. His son broke your windows.

=> I know the man whose son broke your windows.
11. The village has around 200 people. The majority of them are farmers.

=> The village has around 200 people, the majority of which are farmers.
12. She hasn't eat anything. This makes her parents worried.

=> She hasn't eat anything, which makes her parents worried.
13. Mr. Pike is excellent. I am taking his course.

=> Mr. Pike, whose course I am taking, is excellent.
14. I had a holiday which lasted two days.

=>  I had a holiday lasting two days.
15. Tom is the last person who enters the room.

=> Tom is the last person to enter the room.
16. John is the youngest person who takes part in the race.

=> John is the youngest person to take part in the race.
17. I have much homework that I must do.

=> I have much homework to do.
18. There are six letters which have to be written today.

=> There are six letters to be written today.
19. Football, which is a popular sport, is very good for health.

=> Football, a popular sport, is very good for health.

ghép các câu sau bằng cách sử dụng mệnh đề quan hệ rồi lượt bỏ mệnh đề quan hệ đó (vd vs câu: the street is very wide. It leads to my school => the street which leads to my school is very wide=>the street leads to my school is very wide)

1/A boy was injured in the accident. He was taken to the hospital

=> A boy who was injured in the accident was taken to the hospital .

=> A boy was injured in the accident was taken to the hospital .

2/I didn't talk much to the man. The man was sitting next to me on the plane to HA NOI.

=> I didn't talk much to the man who was sitting next to me on the plane to HA NOI.

=> I didn't talk much to the man was sitting next to me on the plane to HA NOI.

3/My family is living in a house. the house was built in 2004

=> My family is living in a house which was built in 2004.

=> My family is living in a house was built in 2004.

A man who very rich left a big tip for the waiter.

It's very..........noisy................. in the city        (noise)

There is a............bakery...........next to my house    (bake)

She is a ...........teacher..............of English            (teach)

I brush my............teeth...........twice a day          (tooth)

Long goes.........sailing..............at the weekend    (sail)

Their house is on the........fifth............floor of the building    (five)

Thai Binh is.........smaller............than Ha Noi                 (small)

Do you...........usually....................play video game?        (usual)

This is the...........oldest................house in my village       (old)

Peter...................drives................a very big truck         (driver)

It's very..........noisy................. in the city        (noise)

There is a...........bakery............next to my house    (bake)

She is a .............teacher............of English            (teach)

I brush my........teeth...............twice a day          (tooth)

Long goes............sailing...........at the weekend    (sail)

Their house is on the..........fifth..........floor of the building    (five)

Thai Binh is........smaller..............than Ha Noi                 (small)

Do you.........usually......................play video game?        (usual)

This is the............oldest...............house in my village       (old)

Peter..............drives.....................a very big truck         (driver)

It's very noisy in the city        (noise)

There is a bakery next to my house    (bake)

She is a teacher of English            (teach)

I brush my teeth twice a day          (tooth)

Long goes sailing .at the weekend    (sail)

Their house is on the fifth floor of the building    (five)

Thai Binh is. smaller than Ha Noi                 (small)

Do you usually play video game?        (usual)

This is the oldest house in my village       (old)

Peter drives a very big truck         (driver)

You sent me apresent. Thank you very much for it.

=> Thank you very much for a present you sent me.

mik chua hoc

You sent me a present, so thank you very much for it.

Because you sent me a present, so thank you very much for it.

9. Ms. Jane, who graduated from a secretarial school last year, will be his secretary. 
10.The village where I spent most of my childhood is no more. 
11.He is put in charge of the investigation which won’t be easy.

12.The workers whose demands were satisfied by the managing board have returned to work. 

13. “The old man and the sea‟, which was written by Hemingway, is worth reading. 

14. The place where we can borrow books is called “library”. 

15.That’s the store where The Wilsons often do their shopping.

16. He is going to Binh Duong, which he intends to settle in.

The hotel is near a beautiful lake so it is very expensive

Mr.James used to live in the countryside when he was a child