There was a lot of fun at yesterday’s party. You ____ come, but why didn’t you?

   A. must have    B. should          C. need have       D. ought to have

Sorry, I’m late. I _____ have turned off the alarm clock and gone back to sleep again.

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

You can’t imagine that a well behaved gentleman _____ be so rude to a lady.

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

It has been announced that candidates _____ remain in their seats until all the papers have been collected.

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

My English-Chinese dictionary has disappeared. Who _____ have taken it?

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

How _____ you say that you really understand the whole story if you have covered only part of the article?

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

Tom graduated from college at a very young age.

--Oh, he ____ have been a very smart boy then.

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

 Who is the girl standing over there?

--Well, if you ____ know, her name is Mabel.

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

 I _____ put Tracy a visit, I’m not sure whether I will have time this Sunday.

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

Children under 12 years of age in that country ____ be under supervision when in a public library.

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