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    科目： 来源：不详 题型：单选题

    It was __________ computer games that cost the young man a lot of precious time that he
    should __________ on his lessons．
    A．to play; be spendingB．playing; spend
    C．played; have spentD．playing; have spent

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    科目： 来源：不详 题型：单选题

    In classes, you’d better understand as much as possible while ______ notes.
    A．takeB．takenC．takingD．to take

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    科目： 来源：不详 题型：单选题

    While listening to the concert, the audience is required to remain ______ and keep quiet.
    A．seatedB．to be seatedC．seatingD．to seat

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    科目： 来源：不详 题型：单选题

    As we all know,________, the pollution will get worse and worse.
    A．not if carefully dealt with
    B．until not carefully dealt with
    C．if not carefully dealt with
    D．when not carefully dealt with

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    科目： 来源：不详 题型：单选题

    —Why does the lake smell terrible?
    —Because large quantities of water _____.
    A．have polluted.B．is being polluted.
    C．has been polluted.D．have been polluted.

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    科目： 来源：不详 题型：单选题

    On August 12,2009, Typhoon Morakot swept across Taiwan island, _____ a lot of villages _____.
    A．leaving; damaged. B．left; damaged.
    C．left; damaging.D．leaving; damaging.

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    科目： 来源：不详 题型：单选题

    Professor Li preferred _______ lectures to his students to _______ to meetings on scientific developments.
    A．to give; inviteB．to give; be invited
    		C．giving; being invitedD．giving; inviting

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    科目： 来源：不详 题型：单选题

    There, ______ Mrs． Tailor, stretching out to gather her precious eggs laid by her hen．
    A．standing on a wooden box wasB．was standing on a wooden box
    C．on a wooden box was standingD．was on a wooden box standing

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    科目： 来源：不详 题型：单选题

    The old lady who caught a bad cold complained that the doctor was ______ too much for the treatment given to her．
    A．payingB．offeringC．spendingD．charging

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    科目： 来源：不详 题型：单选题

    ______ his body and soul to bringing up-to-date technology and International attention to China's Aids problem, Dr David Ho, born in Taiwan, spent little time with his family．
    A．DevotedB．To devoteC．Being devotedD．Devoting

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