1 . I have lost my wallet. I ________ it somewhere just now.

A．must drop	B．must have been dropped
C．must have dropped	D．should have dropped

2 . Mary’s bedroom is so tidy. She________have cleaned it yesterday.

A．must

B．should

C．need

D．would

3 . —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

4 . —— Guess what? I’ve won the third prize in the writing competition in Tianjin area.
—— You don’t say. I know you are not good at English. You ______ great efforts!

A．should have made

B．must have made

C．might make

D．could make

5 . 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

6 . I didn’t hear your call. I __________ asleep at that time.

A．must be

B．should be

C．must have been

D．should have been

7 . They________ have completed their program ; or they wouldn’t be enjoying themselves by the seaside.

A．should

B．must

C．wouldn’t

D．can’t

8 . —Congratulations! You ________ great efforts for the English speech contest.
—Thanks. I do appreciate my teacher’s guidance.

A．must have made

B．should have made

C．could make

D．would make

9 . — She looks very happy. She ________the exam.
—I guess so.

A．should have passed	B．could have passed
C．must pass	D．must have passed