1 . -Hello, can I speak to Mr Smith?
-Sorry, you ________ have a wrong number. There is no one of that name here.

A．need

B．can

C．must

D．would

2 . You ______ pay your library fines, if not, you ______ not be allowed to graduate.

A．may; should

B．should; need

C．must; will

D．will; can