1 . —She looks very happy. She ____have passed the exam.
—I guess so. It’s not difficult after all.

A．should

B．could

C．might

D．must

2 . （2014重庆一中高三下第三次月考）4. —Why! I couldn’t get you on the phone yesterday afternoon?
—We ________ kites in the yard when you phoned.

A．could be flying

B．might have flied

C．must have been flying

D．should be flying

3 . —You will never believe that it took us two hours to get to the restaurant.
—Really? You ________ in a traffic jam.

A．needn't have got stuck	B．couldn't have got stuck
C．must have got stuck	D．should have got stuck

4 . It seemed that our nursery rhymes ________ some magic because all the nights I sang them for my daughter, she would listen to them with keen pleasure.

A．must have had	B．should have had
C．could have had	D．need have had

5 . I ________ have been more than six years old when the accident happened.

A．shouldn’t

B．couldn’t

C．mustn’t

D．needn’t

6 . Tom’s score on the test is the highest in the class. He _____.

A．should study last night

B．should have studied last night

C．must have studied last night

D．must study last night

7 . —It’s amazing that Beijing and Zhangjiakou have won the bid for the 2022 Winter Olympics!
—Sure it is! The government ________ have made great efforts!

A．could	B．should
C．might	D．must

8 . I didn’t hear the phone.   I ___   asleep.

A．must be	B．must have been
C．should be	D．should have been

9 . ---I have looked for my keys everywhere, but I can’t find them.
---Sorry to hear that. You _____ them somewhere.

A．must lose	B．should lose
C．must have lost	D．should have lost

10 . The children________lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.

A．must have got	B．must get
C．should have got	D．should get