1 . During our trip to the Great Wall last week, I couldn’t stop thinking about how huge a project it ________ have been to build it in ancient times.

A．must

B．could

C．should

D．need

2 . 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

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 . Tony looks so happy. He ________ a contract with the famous basketball club.

A．should sign	B．should have signed
C．must sign	D．must have signed

6 . 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

7 . Ms Smith _________ have thought Johnson was worth it or she wouldn’t have wasted time on him. I suppose.

A．might

B．must

C．would

D．should

8 . Look at his strong muscles now! He ________ worked out regularly over the past year.

A．could have

B．should have

C．might have

D．must have

9 . 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

10 . —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