23. Sir, you _____ be sitting in this waiting room. It is for women and children only. (上海’96)

A. oughtn’t to　 B. can’t　　　　 C. won’t　　　　　 D. needn’t

22. I told Sally how to get here, but perhaps I _____ for her. (NMET’94)

A. had to write it out　　　　　　 B. must have written it out

C. should have written it out　　　 D. ought to write it out

21. That young man has made so much noise that he ____ not have been allowed to attend the concert. (上海’92)

A. could　　　　 B. must　　　 C. would　　　　　 D. should

20. --- Is John coming by train?

--- He should, but he _______ not. He likes driving his car. (NMET2002)

A. must　　　　 B. can　　　　　 C. need　　　　　　 D. may

19. ---I hear you’ve got a set of valuable Australian coins. 　　　　　　　　　　 　I have a look?

---Yes, certainly.(NMET2002春)

A. Do　　 　　　B. May　　　　 　C. Shall　　　　 　　D. Should

18. ---Are you coming to Jeff’s party?

---I’m not sure. I ______ go to the concert instead. (NMET2000)

A. must　　　 B. would　　　　　 C. should　　　　　 D. might

17. Sorry, I’m late. I ____ have turned off the alarm clock and gone back to sleep again. (NMET2000春)

A. might　　　 B. should　　　　　 C. can　　　　　　　 D. will

16. ---Could I call you by your first name?

---Yes, you______. (上海’98)

A. will　　　 B. could　　　　　 C. may　　　　　　 D. might

15. Yesterday Jane walked away from the discussion. Otherwise, she ___ something she would regret later. (上海’96)

A. had said　　 B. said　　　　　 C. might say　　　　 D. might have said

14. Peter___ come with us tonight, but he isn’t very sure yet. (NMET’93)

A. must　　 B. can　　　　　　 C. may　　　　　　 D. will