A. that

    B. which

    C. what

    D. whose

    12. He found _________ everybody know what had happened.

    A. it necessary letting

    B. it necessary to let

    C. necessary letting

    D. necessary to let

    13. The interviewer should take down notes at the moment the person _________ answers the questions.

    A. to be interviewed

    B. interviewing

    C. being interviewed

    D. interviewed

    14. “Car 17 won the race.”

    “Yes，but its driver came close to _________ killed.”

    A. being

    B. having been

    C. be

    D. have been

    15. About the sixth century A.D. when few Europeans could read，the Chinese _________ paper.

    A. invented

    B. had invented

    C. have invented

    D. had been invented

    16. I have two friends but _________ of them likes to go fishing with me.

    A. none

    B. neither

    C. both

    D. either

    17. His unhappy childhood _________ his bad temper.

    A. counts for

    B. accounts for

    C. makes for

    D. goes for

    18. No one doubts _________ it is true.

    A. whether

    B. if

    C. that

    D. what

    19. His brother had be a teacher，_________ he wanted to be.

    A. who

    B. what

    C. which

    D. that

    20. Not until I came to China _________ what kind of a country she is.

    A. I knew

    B. I didn't know

    C. I did know

    D. did I know

    参考答案：

    11—15 DBCAB 16—20 BBCCD