1.  Did Sue draw this circle?  
⇒ Was this circle drawn by Sue?                                  
2. Could you feed the dog? 
⇒ Could the dog be fed by you?
28. Do they teach English here?
⇒ Is English taught here?
29. Will you invite her to your wedding party?
⇒ Will she be invited to your wedding party?
30. Has Tom finished the work?
⇒ Has the work been finished by Tom?
31. Did the teacher give some exercises?
⇒ Were some exercises given by the teacher?
32. Have they changed the window of the laboratory?
⇒ Has the window of the laboratory been changed?
33. Is she going to write a poem?
⇒ Is a poem going to be written?
34. Is she making big cakes for the party?
⇒ Are big cakes being made for the party?
35. Are the police making inquires about the thief?
⇒ Are inquires about the thief being made by the police?
36. Must we finish the test before ten?
⇒ Must the test be finished before ten?
37. Will buses bring the children home?
⇒ Will the children be brought home with buses?
38. Have you finished your homework?
⇒ Has your homework been finished?
39. Why didn't they help him?
⇒ Why wasn’t he helped?
40. How many games has the team played?
⇒ How many games have been played by the team?
41. Where do people speak English?
⇒ Where is English spoken?
42. Who are they keeping in the kitchen?
⇒ Who are being kept in the kitchen?
43. How can they open this safe?
⇒ How can this be opened safe?
44. What books are people reading this year?
⇒ What books are being read this year?
45. How did the police find the lost man?
⇒ How was the lost man found by the police?
46. Who look after the children for you?
⇒ By whom are the children looked after for you?
47. How long have they waited for the doctor?
⇒ How long has the doctor been waited for?
48. What time can the boys hand in their papers?
⇒ What time can their papers be handed in by the boys?
49. Who lend you this book?
⇒ By whom is this book lent?
50. How many marks does the teacher give you?
⇒ How many marks are given to you by the teacher?

1: Was this circle drawn by Sue?

2: Could the dog be fed by you?

28: Was English taught here?

29: Will she be invited by you to your wedding party?

30: Has the work been finished by Tom?

31: Were some exercises given by the teacher?

32: Have the window of the laboratory been changed?

33: Is a poem going to be written by her?

34: Are big cakes being made by her for the party?

35: Are the thief being made inquires by the police?

36: Must the test be finished before ten?

37: Will the children be brought home by buses?

38: Have your homework been finished by you?

39: Why was he helped?

40: How many games has been played by the team?

41: Where is English spoken?

42: Who are kept in the kitchen?

43: How can this safe be opened?

44: What books are read this year?

45: How was the lost man found by the police?
46: Who are the children looked after for you?

47: How long has the doctor waited for?

48: What time can handed by the boys in their papers?
49: Who is this book lent you?

50: How many marks are given you by the teacher?