After the class was over, the student apologized ___ the teacher ____ his coming late.

A. for;to             B. to;with           C. with;to           D.to;for

We are willing to cooperate with you ,and _____ ,we may make some concessions(让步) .

A.if necessary      B.if only              C.if ever            D.if so

 Some researchers believe that there is no doubt _____ a cure for AIDS will be found.

A. which            B.that                 C. what              D. whether

    to improve people’s living conditions, the new regulations are expected to be popular.

A. To intend       B. Being intended   C. Having intended      D. Intended

 They had no sooner arrived at the bus station than the bus         .

A. had left          B. will leave       C. left              D. is leaving

 What surprised me most was         they had finished the work so quickly.

A. that               B. what             C. as                 D. which

— May I have an appointment with Mr. Cooper at three o’clock this afternoon?

— I’m sorry, but Mr. Cooper 　　　 a conference then.

A. had attended　　 B. has attended　 C. would have attended　 D. will be attending

 — Is it likely         it will rain in the late afternoon?

   — The weatherman said it would.

A. that             B. what         C. whether      D. why

 After ten years’ hard work, Mr. Johnson was          manager of the famous company.

A. distributed       B. appointed       C. dominated      D. confirmed

         I admit that there are problems, I don’t agree that they can’t be solved.

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