IV. Change the following sentences into passive form.
1. He can't repair my bike
2. Our teacher used to bid us talk in class.
3. Visitors must leave umbrellas and raincoats in the cloakroom
4. My mother used to make us clean the house.
5. they will have to build a new bridge here.
6. She can sew three shirts a day . ( sewn- pp )
7. We have to pick fruit every morning .
8. You must wash your hands before meal.
9. I couldn't catch any fish.
10. The computer can do the account.
11. Children should treat old men with respect.
12. How many ways can you solve this problem?
13. He might phone me tonight.
14. Students ought to prepare their lessons before class.
15. Lan would cook meals .
16. Mary has to cook lunch every day .
17. Hoan had to clean the classroom yesterday.
18. He can speak 4 languages.
19. You can't wear this shirt because it is too small .
20. Can you speak English ?
21. They are going to rebuild our school next month .
22. People say that he sings as well as a singer.
23.We have to solve this problem at once.
24. I used to help her when she was a child .
25 . She had to prepare her lesson before the test.
26. Lan got used to clean the windows last year.
