1 . He __________present at the meeting this morning; he is on a business trip this week.

A．can’t have been

B．mightn’t have been

C．mustn’t have been

D．needn’t have been

2 . He ________ to Shanghai, for I saw him a moment ago.

A．must have gone	B．can’t have gone
C．mustn’t have gone	D．can’t have been

3 . You       have seen Helen in her office this morning because she’s been out of town for two weeks.

A．needn’t	B．mustn’t
C．mightn’t	D．couldn’t

4 . She ____ have left school, for her bike is still here.

A．can’t

B．mustn’t

C．needn’t

D．shouldn’t

5 . —What did you say to your sister? I saw her crying in the room.
— It _________ my fault. I just said hello to her when I met her, nothing else.

A．must have been	B．can’t have been
C．oughtn’t to be	D．should have been

6 . We ________ such great achievements without your efforts. Thanks a lot.

A．can’t have made	B．couldn’t have made
C．were unable to make	D．are unable to make

7 . —Please let me know where David is. I couldn’t find him anywhere.
—Well, he _____have gone far—his coat’s still here.

A．shouldn’t

B．mustn’t

C．can’t

D．wouldn’t

8 . ----Have you heard of Wang Meng?
----Yeah. She ______ have done better. She won China’s first gold medal at Turin.

A．should

B．might

C．needn’t

D．couldn’t

9 . You _____ her in her office last Friday, she’s been out of town for two weeks.

A．needn’t have seen	B．must have seen
C．might have seen	D．can’t have seen

10 . She ________the film, for she knows nothing about it.

A．can’t see

B．can’t have seen

C．must see

D．mustn’t have seen