1 . ___ every one of you succeed in passing the mid-term examination.

A．May

B．Could

C．Might

D．Would

2 . According to the air traffic rules, you ______ switch off your mobile phone before boarding.

A．ought to

B．may

C．can

D．would

3 . The professor ______ sit in his study for hours when he worked on the new project.

A．could

B．might

C．would

D．should

4 . The taxi ____ only hold six passengers. It is full. You____ take the next one.

A．may...may	B．can...may
C．may...can	D．must...can

5 . —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

6 . —May I take this book out ? —No, you _____ .

A．can’t	B．may not
C．needn’t	D．aren’t

7 . Days later, my brother called to say he was all right, but _______say where he was.

A．mustn’t

B．shouldn’t

C．wouldn’t

D．mightn’t

8 . —____ I take the book out?
—I’m afraid not.

A．Will

B．Must

C．May

D．Need

9 . -1 hear you've got a set of valuable coins.___________ I have a look?
-Yes, certainly.

A．Will

B．May

C．Shall

D．Should

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

A．can	B．may
C．must	D．will