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

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

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 was caused in this city by some drunk drivers.

7. His 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 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 ?

1,This flower is watered by my father every morning

2,Fiona was visited by John to his party birthday tonight

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

4,Our teeth should be cheaned twice a day

6,The accident was caused by some drivers in this city

5,The English grammar has been explained by our teacher

7,His parents will be visited by Tom 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 by me 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 painted by the Greens for Christmas Day

13, The cats had been fed by her before the cinema was gone by her

14,The pollution problems have been discussed by the students since last week

15,Have the most valuable painting been stolen by the thieves in the national museum