1Who invited her to the party?  => By whom was her invited to the party

          -  The party be invited  by who ? 

           - The party  was invited by whom ? 

           - By whom the party was invited ? 

          -  By whom was the party  invited? 

2 When did they buy this car? 

When was this car bought?

3 Was Mary helping her mother in the kitchen? 

Was her mother being helped by mary in the kitchen

4 Will you invite her to your birthday party? 

Will she be invited to your birthday party?

 5  He cleans the house 

The house is cleaned by him

6 He is cleaning the house 

The house is being cleaned by him

 7 He has cleaned the house 

THe house has been cleaned

  8  He cleaned the house 

THe house was cleaned by him

 9 He was cleaning the house 

THe house was being cleaned by him

 10 He had cleaned the house 

The house had been cleaned by him

11 He should clean the house 

THe house should be cleaned by him

12  He will clean the house 

THe house will be cleaned by him

Chuyển từ câu chủ động -> bị động

1.Who helped her?

-->By whom ...............was she helped................?

2.Who bake this cake?

-->By whom ...............is this cake baked............?

3.Who has written this sentence on the wall?

-->By whom ...............has this sentence been written on the wall................?

sao lại dùng whom mà ko phải who 

giải thích đc ko ạ

Chuyển từ câu chủ động -> bị động

1.Who helped her?

-->By whom she was helped ?

2.Who bake this cake?

-->By whom this cake is baked?

3.Who has written this sentence on the wall?

-->By whom this sentence has been written on the wall ?

sao lại dùng whom mà ko phải who 

giải thích đc ko ạ

Chuyển từ câu chủ động -> bị động

1.Who helped her?

-->By whom was she helped?

2.Who baked this cake?

-->By whom was this cake baked?

3.Who has written this sentence on the wall?

-->By whom has this sentence on the wall been?

Chuyển câu chủ động thành câu bị động

Who has just cleaned the floor

➞ who has the floor been cleaned by?

➞by whom has the floor been cleaned?

Who must water the flower

➞who must the flower be watered by?

➞by whom must the flower be watered

Who helps you everyday

➞who are you helped everyday by?

➞by whom are you helped everyday?

21. I see some girls ________ are pretty.

A. whom B. which C. who D. they

22. Give back the money ________ you took.

A. it B. who C. whom D. which

23. He was killed by a man ________ friends we know.

A. whose B. which C. whom D. that

24. He spoke to the messengers with ________ you were leaving.

A. which B. whom C. whose D. that

25. We captured a town ________ is in Spain.

A. whom B. where C. which D. it

26. The farmers ________ we saw were in the field.

A. whose B. which C. they D. whom

27 The women ________ I gave the money were glad.

A. to whom B. to that C. for whom D. for that

28. I know a boy ________ name is John.

A. who B. whose C. whom D. that

29. The man ________ you sent to the general has reported the victory.

A. whose B. which C. whom D. he

30. I saw those slaves ________ had been led to the city. 

A. whose  B. which C. whom D. who

31. The people ________ courage you praised are now citizens.

A. whose B. which C. whom D. that

32. Your folks ________ live in farmhouses do not like the life of the city.

A. whose B. who C. they D. which

33. Those towns ________ you were looking at in Gaul are small.

A. who B. where C. which D. whom

34. In Helvetia I have seen a large city ________ many people live.

A. at which  B. which  C. on which  D. in which

35. He ________ is not my friend is my enemy.

A. who B. which C. whom D. A&B

36. I sent my friend the books ________ I had written.

A. who B. which C. whom D. what

37. Behind the farmhouse there was a large garden, ______ the farmer and his sons were working.

A. for which B. which C. in which D. that

38. Did you see the men to whom I gave the money?

A. to whom B. which C. from whom D. to that

39. She sends me the book________ she________ two years ago.

A. whom / writes B. whose /wrote C. which/ writes D. which / wrote

40. The man ________ spoke to John is my brother.

A. whom B. who C. whose D. which

41. I must thank the man from _____ I got the present.

A. who B. whom C. that D. which

42. It is a car ______ I bought last year.

A. whom B. who C. which D. whose

43. He is the man _______ son is a doctor

A. whom B. which C. who D. whose

44. The woman _______next door is a famous singer.

A. lives B. who live C. living D. that living

45. The house ______ in the storm has now been rebuilt.

A. destroyed B. destroying C. which destroyed D. that is destroyed

46. The man ______ at the blackboard is our teacher.

A. stood B. stands C. standing D. to stand

47. Tom was the last ______the classroom yesterday.

A. to leave B. leaving C. left D. leaves

48. Linda was the last student ______ at the oral exam.

A. to be asked B. asking C. asks D. to ask

49. The bridge _____ by French architects is very nice.

A. was designed B. designing C. to design D. designed

50. The problems ______they are discussing at the meeting are very important.

A. who B. which C. Ø D. both B and C

51. Michael told me about students _______have just got the scholarship.

A. which B. Ø C. who D. whose

52. The ring ______ is made of gold and diamond.

A. she is wearing it B. he gave it to her C. Linda like D. she is wearing

53. The house ______ is situated in the city centre.

A. which B. we have just bought C. in where we live D. which we live

54. I come from a city _______ is located in the southern part of the country.

A. who B. whom C. that D. whose 

Choose the best answer:
1. The boy with _____ I have talked is very successful student
A. who     B. whom     C. that     D. for that
2. The composition _____ by Jane was really interesting
A. to write     B. writing     C. wrote     D. written
3. Fleming's discovery of penicilin, _____, had a major influence on the lives of people in the 20th century
A. which was awarded the Nobel Prize
B. which awarded the Nobel Prize
C. that he was awarded the Nobel Prize
D. for which he was awarded the Nobel Prize
4.  I want you to meet the woman _____
A. who taught me how to drive
B. teaching me how to drive
C. that is taught me how to drive
D. who is taught me how to drive
5. Mr Pike, _____ is our boss, has just come back from Paris
A. who     B. whom     C. that     D. which
6. The girl _____ is my new friend
A. who is sitting on the bench
B. that is sitting on the bench
C. sitting on the bench
D. all are correct
7. We don't know the reason _____ Peter is absent today
A. who     B. which     C. that     D. why
8. Dr Smith is a good surgeon. He lives next door
A. Dr Smith that lives next door is a good surgeon
B. Dr Smith who lives next door is a good surgeon
C. Dr Smith, who lives next door, is a good surgeon
D. Dr Smith, whom lives next door, is a good surgeon
9. The reading table _____ I put my books is in the corner of the room
A. when     B. where     C. why     D. whose
10. It is him _____ helped me last night
A. who     B. that     C. why     D when
11. Anybody _____ finishes that test early can leave
A. that     B. whom     C. why     D. when
12. He is the good colleague _____
A. to work for us with     B. to us for working with
C. for working with us     D. for us to work with
13. Mary was the last applicant _____ by that interview
A. to be interviewed     B. to be interviewed
C. to have interviewed     D. to interview
14. I'm hungry. Is there any food _____ ?
A. to be eaten     B. to eat     C. eating     D. for me eating
15. Dien Bien Phu is a place _____ our army won a resounding victory in 1954
A. where     B. what     C. which     D. that

1.B

2.D

3.D

4.A

5.A

6.C

7.D

8.C

9.B

10.A

11.A

12.D

13.A

14.B

15.A

1.By whom was she helped?

2.By whom this cake baked?

3.The package hasn't been mailed by Miss Linh yet.

4.Who will our classroom be cleaned?

Change the active verbs to passive verbs.Write the subject of the passive sentences.

1. Who helps her?

⇒ By whom .WAS SHE HELPED?..

2. Who bake this cake?

⇒ By whom .THIS CAKE BAKED..

3. Miss Linh hasn't mailed the package yet

=>THE PACKAGE HASN'T BEEN MAILED BY MISS LINH YET.

4. Who will clean our classroom?

=>WHO WILL OUR CLASSROOM BE CLEANED?

1,marconi was the ..INVENTOR.. of radio(invent)

2,the ..INVENTION.. of radio was made by marconi

1inventor

2invention