1. This flower is watered by my father every morning (Bị động HTĐ: am/is/are + p.p)

2. Fiona was invited to John's birthday party last night by him (Bị động QKĐ: was/were + p.p)

3. The dinner is being prepared in the kitchen by her mother (Bị động HTTD: am/is/are + being + p.p)

4. Our teeth should be cleaned twice a day (Bị động với modal verbs: modal verbs + be + p.p)

5. The English grammar has been explained by our teachers (Bị động HTHT: have/has + been + p.p)

6. The accident was caused in the city by some drunk drivers (Bị động QKĐ)

7. Tom's parents will be visited by him next month (Bị động TLĐ: will be + p.p)

8. The secretary was not phoned by the manager this morning (Bị động QKĐ)

9. Was this beautiful dress bought by Mary? (Bị động QKĐ: Was/ Were + S + p.p + (by s.one)

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

11. This factory wasn't built by the German during the Second World War (Bị động QKĐ)

12. This house and these cars are going to be painted by the Greens for Christmas Day (Bị động TLG: am/is/are + going to be + p.p)

13. The cats had been fed by Ann before she went to the cinema (Bị động QKHT: had been + p.p)

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

15. The most valuable painting in the national museum was stolen by the have thieves 

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

17. His nose has been broken by him in a football match

18. The above sentences have been finished by me

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

20. thrown (Bị động QKĐ: was/were + p.p)

21. fixed (Bị động HTHT: have/has been + p.p)

22. is being done (Now: Bị động HTTD: am/is/are + being + p.p)

23. was found (Bị động QKĐ)

24. be finished 

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

2. Fiona was invented by John to his birthday party last night.

3. The dinner is being repaired in the kitchen by her mother.

4. Our teeth should be cleaned twice a day.

5. The English gramma has been explained by our teachers.

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

7. Tom's parents will be visited 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.

11. This factory wasn't built by the German during the Secong World War.

12. This house and these cars are going to be painted by the Greaens for Christmas Day.

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

14. The pollution problem has been discussed by the students since last week.

15. The most valuable painting has been stolen in the national museum bythe thieves.

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

17. His nose has been broken in a football match.

18. The above sentences have been finished.

19. I wonder whether Susan or Janne will be choose by the board of directors for the position.

20. thrown

21. fixed

22. is being done

23. was found

24. be finished