–Do you think Professor Smith_________be in the lab?
--I’m not sure.

A．must

B．shall

C．need

D．can

Our house is on the top of the hill, and in winter the winds ______ be pretty cold .

A．can

B．will

C．would

D．shall

---_______ they stop to have a rest?
---No, let them go on.

A．Will

B．Would

C．Shall

D．Should

My bicycle is nowhere to be found. Who ___ have been using it?

A．should

B．must

C．could

D．might

It is required that each of the students chosen _____ good preparations ahead of time.

A．has to make

B．will make

C．should make

D．must make

PART TWO LANGAGE KNOWLEDGE SECTION A
Directions: Beneath each of the following sentences are 4 choices marked A, B9 C and D. Choose the answer that best completes the sentence.
It is reported that in the next few years the earth________possibly be hit by more extreme weather like storms.
A. would     B. may       C. could    D. should

______I be free tomorrow，I could go with you．

A．Could

B．Should

C．Might

D．Must

I ______ her, but I never could.

A．ought to help

B．must help

C．must have helped

D．ought to have helped

If you are caught driving after drinking, the fine      be paid in cash according to the traffic rules.

A．shall

B．will

C．must

D．should

.Imagine what today’s life would be like if Alexander Bell      the telephone more than 130 years ago!

A．didn’t invent	B．wouldn’t invent
C．hadn’t invented	D．wouldn’t have invented