1 . —Why didn’t you come to Mike’s birthday party yesterday ?
—Well, I________, but I forgot it.

A．should

B．must

C．should have

D．must have

2 . There was no one else in the classroom, so he ______ it by himself.

A．should have done

B．need have done

C．must have done

D．could have done

3 . —I saw Lily in the teacher’s office just now.
—You _________ her, she has gone back home.

A．must not see

B．mustn’t have seen

C．can’t have seen

D．couldn’t see

4 . I believe he ________ an accident, otherwise he ________ have arrived on time.

A．might have；would

B．should have had； should

C．could have； should

D．must have had； would

5 . Her round figure, seen in the Tang Dynasty, ________ the admirable image.

A．would have been considered	B．would have considered
C．had considered	D．must have been considered

7 . Harry is feeling uncomfortable. He ________ too much at the party last night.

A．has to drink	B．must have drunk
C．could be drunk	D．needs to drink

8 . —The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
—Oh, dear! She ______ a lot of difficulties!

A．may go through	B．might go through
C．need have gone through	D．must have gone through

9 . My key isn’t in my backpack. Where on earth________ I have put it?

A．can

B．would

C．should

D．must