“You  _______ be so tired that you had to stop to rest．”

　A. should          B. can’t                        C. must                       D. mustn’t

------It’s too cold this morning. I can’t get my car ______.

   ------ Have you tried _________ the tank with hot water.

A. started; to fill    B. to start; filling         C. starting; to fill       D. start, filling

.______ I admit that there are still some problems about the traffic in this area, I don’t mean that it can’t be solved.

A. While       B. Until C. Unless       D. As

 It's no secret to us, but he alone is in the dark. It means ____.

A. nobody but him knows the secret           

B. we all know the secret except him

C. it's so dark that he can't see everything clearly  

D. only the needs to keep the secret

As you are now a member of our society we shall let you ______ our secrets.

A. into         B. through   C. to     D. between

____ so much trouble, we failed to complete the task on time.

  A. Faced   B. Face   C. Facing   D. To face

What surprised me was not what he said but          he said it .

A.the way       B.in the way that          C.in the way         D.the way which

The boss praised the young man for his hard work, though he ____ experience.

A. was lack of    B. was lacking in?C. lacks of         D. was lacking of

The Great Wall was built to keep ____  the invaders.

 A. in  B. out  C. up   D. off

.--The weather is too cold ____ March this year.  —It was still ____when I came here years ago.

  A. for; colder   B. in; cold   C. in; hot   D. for; hotter