6. The flowers haven't been bought yet.
7. He is being laughed at.
8. Our conversation was being recorded.
9. She hasn't been seen since last week.
10. The computer is being used by Bill at the moment.
11. Many people have been treated by doctors for burn.
12. The match was being watched on T.V.
13. His watch hasn't been stolen.
15. The test isn't done well by Mai.
16. The gate hasn't been painted gray by our father.
17. A song wasn't being sung by Alex when the doorbell rang.
18. The floor mustn't be cleaned by the students every day.
19. The dog is usually fed by my mother.
20. The train can't be used by a lot of people.
21. The eggs have been eaten by the little girl.
22. Soccer is played by people all over the world.
23. The mail was brought early today by the postman.
24. A party will be held next Sunday by my sister.