1 . Someone_________my umbrella.I found it wet.

A．should have used

B．can't have used

C．must have used

D．could have used

2 . His father _________ him for his rudeness, for Tom looked happy.

A．could have forgiven	B．might have forgiven
C．must forgive	D．must have forgiven

3 . Since nobody gave him any help, he ___________have done the research on his own.（根据句意填空）

4 . 我相信，当许海峰为自己的祖国赢得第一枚金牌时，整个中国都为之感到自豪。
I am sure the whole of China __________ __________ __________ proud when Xu Haifeng won the first gold medal for his country.

5 . We _______ have bought so much food now that Suzie won’t be with us.

A．may not

B．can’t

C．mustn’t

D．needn’t

6 . Jenny _______ have kept her word. I wonder why she changed her mind.

A．must

B．should

C．need

D．would

7 . — Jim ________ what I said annoying though he didn’t say anything.
— So you mean you will have to apologize to him?

A．must find

B．might find

C．should have found

D．must have found

8 . Her companion_____   a trick on her, for she was not in the mood for everything that day.

A．can’t have played	B．must have played
C．should have played	D．needn’t have played

9 . —You rang me up at about 10:00 last night, didn't you?
—No, I didn't phone you. It        someone else.

A．must have been

B．could be

C．must be

D．could have been

10 . She looks very happy. She_________ the exam.

A．can have passed

B．should have passed

C．must have passed

D．could have passed