Răspuns :
1. He was bitten by a dog
2. The mirror was broken by them a few days before
3. His gold watch was stolen by somebody
4. Robots are usually used by them for assembling cars.
5. The TV was damaged by his father yesterday
6. The cake is being made by my mother
7. The news were being broadcasted when my friend came.
8. A new street is being built by the authorities these days.
9. A new street must be built by them anyway.
10. A new programme was just installed by my brother for me
11. The search was given up by the party; The missing person couldn't be found by them.
12. I called him when the furniture was moved by him
13. My dress will be mended by me.
14. The composition is going to be written by her.
15. He said his car would be moved away by people
16. His computer will be repaired by a specialist at this time tomorrow
17. The cleaning of the room will have been finished by her by then
18. Some free tickets can be offered to them by us
19. Your bed sheets should be changed by you
20. A letter of complaint may be sent by our partner
21. The competition was told to him by them.