1.This flower is watered by my father every morning

2.Fiona was invented to John’s birthday party last month

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

4.Our teeth should be cleaned twice a day

5.The English grammar has been explained by our teachers

6.The accident in this city was caused 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

11.This factory wasn't built by the German during the second world war

12.This house and these cars are going to be painted for Christmas 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 stolen 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

chúc bạn học tốt^^,nếu thấy hữu ích thì cho mình 5* với câu trả lời hay nhất nha^^