A. advantage

    B. care

    C. use

    D. profit

    22. His business is growing so fast that he must____ more workers.

    A. take up

    B. take on

    C. take over

    D. take out

    23.It is desirable that he_____.

    A. gives up trying

    B. give up trying

    C. would give up trying

    D. is going to give up trying

    24. Young____ he is，he knows what is the right thing to do.

    A. that

    B. as

    C. although

    D. however

    25. This is one of the best books _____on the subject.

    A. that have ever been written

    B. which have ever been written

    C. that has ever been written

    D. whatever have been written

    26. We were not surprised at ____，for he had worked so hard.

    A. what has he achieved

    B. that what he had achieved

    C. what he had achieved

    D. that he had achieved

    27. My room is a mess. It needs ____.

    A. to be tidying up

    B. tidying up

    C. to tidy up

    D. tidied up

    28. A great celebration is going to be held ____ the distinguished writer.

    A. in spite of

    B. in honor of

    C. in favor of

    D. in the name of

    29. All the members in the jury agreed that the man was ____ of theft.

    A. criminal

    B. charged

    C. guilty

    D. faulty

    30. Having finished the letter，he ____ it carefully and sealed the envelop with a kiss.

    A. folded

    B. bent

    C. turned

    D. equipped

    参考答案：

    21.A 22.B 23.B 24.B 25.A 26.C 27.B 28.B 29.C 30.A