The oil must be used up,    the light went out.

A. for   B. because  C. since   D. as

I’m afraid I am not fit for the job, for it is     calling for much patience.

A. which   B. thence   C. one   D. that

It’s    , as I trust you so much.

A. between ourselves  B. between yourselves 

C. among ourselves   D. among yourselves

----How do you deal with disagreements between the company and the customers?

----They key     the problem is to meet the demand    by the customers.

A. to solving; making   B. to solving; made 

C. to solve; making  D. to solve; made

Cloning the sheep ----Dolly is a big     in science.

A. progress   B. run  C. jump   D. rush

As far as we know, Tom spends at least as much time watching TV as he  .

A. does writing   B. writes   C. writing   D. does to write

---Are you still going to Shanghai for the Spring Festival?

  ---Yes, but I really     because I have a lot of things to deal with.

A. can’t   B. mustn’t   C. won’t   D. shouldn’t

---Try to remember to turn off the light when you leave the room.

   ---I’m trying to    expenses.

A. keep off  B. keep down  C. keep out   D. keep from

Tom,    yourself. Did you forget the school rules?

A. behave    B. believe    C. perform   D. conduct

The bridge is 1000 meters    length.

A. with   B. in   C. at   D. on