1. The waiters cleaned the rooms.
_The rooms were cleaned by the waiters________________________________________________
2. They caught the elephant.
__The elephant was caught. _______________________________________________
3. They built the house.
__The house was built._______________________________________________
4. The pupils made the cards.
___The cards were made by the pupils______________________________________________
5. Nguyen Du wrote Kieu story.
_Kieu story was written by Nguyen Du________________________________________________
6. John met Fiona.
_Fiona was met by john________________________________________________
7. Some drunk drivers caused the accident.
_The accident was caused by some drunk drivers________________________________________________
8. The manager didn’t phone the secretary.
__The secretary wasn't phoned by the manager_______________________________________________
9. Mary made this beautiful dress.
__This beautiful dress was made by Mary_______________________________________________
10. The German didn’t build this factory.
__This factory wasn't built by the German_______________________________________________
11. Their grandmother told many interesting stories.
_Many interesting stories was told _______________________________________________
12. Tim ordered some train tickets.
__Some train tickets was ordered by Tim_______________________________________________
13. He didn’t buy the special cameras.
_The special cameras wasn't bought________________________________________________
14. Alice presented many problems.
_Many problems was presented by Alice________________________________________________
15. We picked some bananas and some flowers.
_Some bananas and some flowers was picked________________________________________________