Exercise 1: Choose the best answer
1. D. You must do your homework every day.
2. C. She shouldn't be told the news. She might be killed.
3. D. I mustn't submit my assignment today
4. C. We should leave for the disco now
5. A. You shouldn't have lost your passport.
6. D. My car keys might be in the kitchen.
7. Can I come to your house at about 7 pm?
8. D. Helmets must be worn all the time when you are riding a motorcycle.
9. D. The answer in the book must be wrong!
10. B. Could you tell me how to get to the station near here?
11. C. He must have studied hard.
12. C. I used to get up early in the morning.
13. D. Would you mind not using the shower after midnight?
14. D. The carpet hasn't cleaned yet.
15. D. I'd rather go out for a meal than stay home
16. C. couldn't
17. C. Could you please
18. C. will
19. C. had to
20. A. can't
21. B. couldn't
22. C. must
