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It was Mr Zhang that helped us out of the trouble. Without his help, we ______ it so easily.

  A. can’t manage                     B. mustn’t have managed   

C. couldn’t have managed             D. couldn’t manage

________ is know to us all is that the old worker, for _______ life was hard in the past, still works hard in his seventies.

  A. As; whom       B. What; whose        C. It; whose        D. What; whom

The ground is wet all over, so I’m sure it must have rained last night, ________?

  A. wasn’t it        B. didn’t it      C. isn’t it   D. doesn’t it

I’m sorry to tell you that we will not tell you the results of the survey until we have looked through all the _______.

  A. directions      B. instructions       C. data        D. standards

Each country, of course, in _______ Copenhagen has its own particular priorities and concerns, which is why ________ agreement is so difficult to reach.

  A. the; an        B. /; an       C. a; the         D. /; the

---What on earth are the police busy with?

   ---They have been looking into how the plane crash _______.

  A. came out     B. came up      C. came down      D. came about

A team of nurses ________ the doctor in performing the operation on the boy wounded in the earthquake.

  A. supported      B. encouraged        C. assisted      D. respected

The Chinese economy is still doing well _______ the current financial crisis.

  A. on behalf of                 B. in spite of

C. in terms of                  D. in consequence of

Each of us is likely to develop a personal _______ for certain types of entertainment.

  A. comparison        B. possession        C. preference        D. advantage

______ the crisis of economy getting more and more serious, the government is searching for ways to improve people’s life.

  A. As        B. With          C. When         D. If