北京2010年成人英語三級考試模擬試題及答案(5)

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北京2010年成人英語三級考試模擬試題及答案(5)
    21. I believe it is one of the best books _______ written on the subject.
    A. that have ever been B. which have ever been
    C. that has ever been D. which has ever been
    22. This is a very _______ issue and we haven’t figured out a way to deal with it yet.
    A. competent B. compound C. comprehensive D. complicated
    23. Mary helped Bill whenever he was in trouble but he never did anything for her _______.
    A. in turn B. in advance C. in return D. in vain
    24. Can you tell the _______ difference between the two words?
    A. slender B. single D. slight D. simple
    25. The _______ of the movie is so great that many people want to see it.
    A. attack B. attraction C. attempt D. attention
    26. The old man, _______ poor, could not afford a decent meal.
    A. being B. is C. was D. has been
    27. Our sportsman won the race ______ at the Olympics.
    A. with easiness B. in ease C. with ease D. at
    DCCB
    26-30 ACAAC