The old professor told us every part of the materials should be made use of ______ the power station.

A. to build      B. building

C. build   D. built

All her time _______ experiments, she has no time for films.

A. devoted to do    B. devoted to doing

C. devoting to doing      D. is devoted to doing

The plan    ___ just because people were unwilling to co-operate（合作）。

    A. broke down              B. pulled down

C. turned down             D. put down

The telephone _______ three times in the last hour, and each time it ________ for my father.

    A. had rang； was        B. has rung； was

C. rang； has been       D. has been ringing； is

I _____ for five minutes； why don’t they come？

    A. am calling         B. called

C. was calling        D. have been calling

The traffic accident wouldn’t have happened yesterday, but the driver _______ really careless.

    A. was  B. is

    C. were  D. had been

—What did he say to you just now?

—He told me that he would leave for Jinan         .

A. the next week                        B. next week         

C. the following week                 D. following week

I met the teacher in the street yesterday ________ taught me English three years ago.

A. which          B. when      C. where          D. who

Our company will move to a tall building _______ we worked two years ago.

    A. where                B. when      C. that                 D. which

 He told me that he had two girl-friends, and neither of _______ knew anything about the other.

A. them               B. whom      C. which              D. who