1.These flowers are watered by my father every morning.(HTĐ)

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

3.Our teeth should be cleaned twice a day(HTĐ)

4.The English grammar has been plained by our teachers(HTHT)

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

6.His parents will be visited by Tom next month(TLĐ)

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

8.Was this beautiful dress bought by Mary ?(QKĐ)

9.Have the above sentences been finished?(HTHT)

10.Are those shoes going to be repaired?(TLG)

11.How many languages are spoken in Canada?(HTĐ)

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

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

15. this flower is watered by my father every morning

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

17. Our teeth should be cleaned twice a day

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

19. His parents will be visited by Tom next month

20. The English grammar has been explained 

21. The secretary wasn’t phoned (by the manager) this morning.

22. Was this beautiful dress made by Mary?

23. Have above sentences been finished ?

24. Are those shoes going to be repaired ?

25. How many languages are spoken in Canada by them?

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

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