1 . Whale breathe through lungs just as we humans do，so they_______come up for air．

A．may

B．can

C．might

D．must

2 . You don’t have to know the name of the author to find a book. You _____ find the book by the title.

A．must

B．need

C．can

D．would

3 . You ________ be Carol. You haven’t changed a bit after all these years.

A．must

B．can

C．will

D．shall

4 . —Shall I inform him of the change of the schedule right now?
—I am afraid you _______,in case he comes late for the meeting.

A．will

B．must

C．may

D．can

5 . If you        go, at least wait until the storm is over.

A．can	B．may
C．must	D．will

6 . Doctors say that exercise is important for health,but it__________be regular exercise .

A．can

B．will

C．must

D．may

7 . You              park here! It’s an emergeney exit.

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

8 . ___________ I have a word with you? It won’t take long.

A．Can	B．Must
C．Shall	D．Should

9 . (2016·北京)I love the weekend, because I _________ get up early on Saturdays and Sundays.

A．needn’t	B．mustn’t
C．wouldn’t	D．shouldn’t

10 . —Can’t you stay a little longer?
—It’s getting late. I really _____ go now. My daughter is home alone.

A．may	B．can
C．must	D．dare