II. Rewrite the sentences in the passive voice form: (Modal verbs)
6. We must wash this kind of cloth in warm water only. .................................................................................................................................................
7. We ought to deal with the problem before people talk about it. .................................................................................................................................................
8. You mustn’t touch this button while the experiment is in progress. .................................................................................................................................................
9. Can they repair the machine in two days? .................................................................................................................................................
10. They couldn’t find the man anywhere. .................................................................................................................................................
III. Change these sentences into passive form.
11. I will shut the door if you like. → …………………………………………………………………………………………….
12. The teacher won’t correct exercises tomorrow. → …………………………………………………………………………………………….
13. He can’t repair my bike. → …………………………………………………………………………………………….
14. When did you see him in that bank? → ……………………………………………………………………………………………. 15. She read the letter again and again last night. → …………………………………………………………………………………………….
16. You must do this exercise carefully. → ……………………………………………………………………………………………. 17. We can solve the problem. → …………………………………………………………………………………………….
18. People should stop experiments on animals. → …………………………………………………………………………………………….
19. She can sew 3 shirts a day. → …………………………………………………………………………………………….
20. Visitors must leave umbrellas in the cloakroom. → …………………………………………………………………………………………….