22. You didn’t let me drive. If　 we＿＿＿＿in turn, you＿＿＿ so tired.

　　 A. drove； didn’t get　　　 B. drove；　 wouldn’t get　

　　 C. were driving； wouldn’t get

　　 D. had driven； wouldn’t have got

21. What would have happened＿＿＿＿, as far as the river bank?

　　 A. if Bob has walked farther　

　　 B. if Bob should walk farther

　　 C. had Bob walked farther　　　

　　 D. if Bob walked farther

20. -- Will you stay for lunch?

　　 -- Sorry, ＿＿＿＿＿. My brother is coming to see me.

　　 A. I mustn’t　　　　 B. I can’t

　　 C. I needn’t　　　　 D. ?won’t

19. -- Why do you make me do so?

　　 -- I am sorry that you＿＿＿＿＿＿＿＿do such a thing.

　　 A. would　　 B. can　　 C. should　　 D. may

18. -- Must I take a bus ?

　　 -- No, you＿＿＿＿. You can walk from here.

　　 A. must not　　　　　 B. don’t　

　　 C. don’t have to　 D. had better not to

17. -- I didn’t see her yesterday.

　　 -- Oh, but you ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿.

　　 A. must have　　　　 B. ought to　

　　 C. should have　　　　　　 D. cannot have

16. They must have been here the day before yesterday,＿＿＿＿?

　　 A. mustn’t they　　　　　　　　　 B. didn’t they　

　　 C. mustn’t have　 they D. had they

15. She＿＿＿＿＿＿＿＿the film. She knows nothing about it.

　　 A. can’t see　　　　　 B. can’t have seen　

　　 C. must see　　　　　 D. mustn’t have seen

14. -- Nacy＿＿＿＿＿＿＿＿＿ the letter from her mother.

　　 -- No, she can’t have. The postman hasn’t come yet.

　　 A. can receive　　　　　　　　　　 B. can have received　

　　 C. must have received　 D. must receive

13. I don’t think he＿＿＿＿＿＿＿ a new bike.

　　 A. need to buy　　　　　　 B. needs　 buy　

　　 C. need　　　　　　　　 D. need　 buy