1. Letters are typed by Mary in the office.

2. You will be helped by his father tomorrow.

3. Human life has been completely changed by science and technology.

4. This bottle was broken by Peter.

5. English is being learnt in the room.

6. My mind can't be changed.

7. I hadn't been told about it.

8. Her telephone number isn't known by me.

9. The children will be brought home by my students.

10. A present was sent to me by you last week.

11. More information was given to us by her.

12. All the workers of the plan was being instructed by the chief engineer.

13. Tea with cold water can't be maded.

14. Some of my books has been taken away.

15. The meeting will be held before May Day.

16. The engine of the car has to be repaired.

17. The window was broken and some pictures were taken away by the boys.

18. A lot of money is spent on advertising everyday.

19. A story is going to be told by the teacher.

20. A cake is being cut with a sharp knife by Mary.

21. The woman with a red had was looked at by the children.

22. The victims have been provided with food and clothing.

23. English is spoken in almost every corner of the world.

24. This machine musn't be used after 5:30pm.

25. After class, the chalk board is always erased by one of the students.

26. Is English taught here.

27. Will her be invited to your wedding party?

28. Has the work been finished by Tom?

29. Were some exercises given by the teacher?

30. Has the window of the laborary been changed?

31. Is a poem going to be written by her?

32. Are big cakes being made for the party by her?

33. Are inquires about by the thief being made by the police?

34. Must the test be finished before ten?

35. Will the children be brought home by buses?

36. Has your homework been finished?

37. Why wasn't he helped?

38. How many games have been played by the team?

39. Where is English spoken?

40. Who is being kept in the kitchen?

41. How can this safe be opened?

42. What books are being read this year?

43. How was the lost man found by the police?

45. How long has the doctor been waited?

46. What time can the papers be handed in by the boys?