1. This flower is watered (by my father) every morning.

2. Fiona was invented to John's birthday party last night.

3. The dinner is being prepared (by her mother) in the kitchen.

4. Our teeth should be cleaned twice a day.

5. The English grammar has been explained (by our teacher).

6. The accident was caused in this city (by some drunk drivers).

7. Tom's parents will be visited (by him) next month.

8. The secretary wasn't phoned (by the manager) this morning.

9. Was this beautiful dress bought by Mary?

10. These old pictures won't be hung in the living room (by me).

11. This factory wasn't built (by the Greens) during the Second World War.

12. This house and these cars are going to be painted for Chrismas day by the Greens.

13. The cats had been fed (by Ann) before she went to the cinema.

14. The pollution problems have been discussed (by the students) since last week.

15. Has the most valuable painting in the national museum been stloen (by the thieves).

16. The new president will be interviewed on TV (by some people).

17. How many languages are spoken in Canada(by them)?

18. Are those shoes going to be repaired?

19. His nose has been broken in a football match(by him).

20. Have above sentences been finished?

21. When will the work be done?

22. How is this problem going to be dealt with?

23. How is this amount of money spent?

24. I wonder whether Susan or Jane will be chosen for the position by the board of directors.

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

1. My father waters this flower every morning.

=> This flower is watered by my father every morning.

2. John invited Fiona to his birthday party last night.

=> Fiona was invited to John's birthday party last night.

3. Her mother is preparing the dinner in the kitchen.

=> The dinner is being prepared in the kitchen by her mother.

4. We should clean our teeth twice a day.

=> Our teeth should be cleaned twice a day.

5. Our teachers have explained the English grammar.

=> The english grammar has been explained by our teachers.

6. Some drunk drivers caused the accident in this city.

=> The accident was caused by some drunk drivers in this city.

7. Tom will visit his parents next month.

=> Tom's parents will be visited next month.

8. The manager didn’t phone the secretary this morning.

=> The secretary wasn't phoned by the manager this morning.

9. Did Mary make this beautiful dress?

=> Was this beautiful dress made by Mary?

10. I won’t hang these old pictures in the living room.

=> These old pictures won't be hung in the living room.

11. The German didn’t build this factory during the Second World War.

=> This factory wasn't built by the german during the second world war.

12. The Greens are going to paint this house and these cars for Christmas Day.

=> This house and these cars are going to be painted by the greeens for christmas day.

13. Ann had fed the cats before she went to the cinema.

=> The cats had been fed by Ann before she went to the cinema.

14. The students have discussed the pollution problems since last week.

=> The pollution problems have been discussed by the students since last week.

15. Have the thieves stolen the most valuable painting in the national museum?

=> Has the most valuable paiting in the national museum been stolen by the thieves?

16. Some people will interview the new president on TV.

=> The new president will be interviewed on TV.

17. How many languages do they speak in Canada?

=> How many languages are spoken in Canada?

18. Are you going to repair those shoes?

=> Are those shoes going to be repaired?

19. He has broken his nose in a football match.

=> His nose has been broken in a football match.

20. Have you finished the above sentences?

=> Have the above sentences been finished?

21. When will you do the work?

=> When will the work be done?

22. How are you going to deal with this problem?

=> How is this problem going to be dealt with?

23. How do you spend this amount of money?

=> How is this amount of money spent?

24. I wonder whether the board of directors will choose Susan or Jane for the position.

=> I wonder whether Susan or Jane will be chosen for the position by the board of directors.

25. How did the police find the lost man?

=> How was the lost man found by the police?