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    科目： 来源：不详 题型：单选题

    The lecture hall______ by Doctor Li in the 1980s can contain at most 6,000 people.
    A．set upB．was set upC．is set upD．setting up

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    科目： 来源：不详 题型：单选题

    Mr Black decided to give up his farm and devote all his time to______ those children living on the streets.
    A．helpB．helpingC．be helpingD．being helped

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    科目： 来源：不详 题型：单选题

    A study ________ in the U.S.A. in 1977 showed that the chemical ASA in aspirin could prevent a stroke.
    A. carrying out    B. carried out    C. working out    D. worked out

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    科目： 来源：不详 题型：单选题

    He was busy writing a story, only _____once in a while to smoke a cigarette.
    A．to stopB．stoppingC．to have stoppedD．having stopped

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    科目： 来源：不详 题型：单选题

    ________ from endless homework on weekends, the students now find their own activities, such as taking a ride together to watch the sunrise.
    A．Freed B．Freeing C．To free D．Having freed

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    科目： 来源：不详 题型：单选题

    Stop_____ this kind of deer. They are_________.
    A．hunting; dying awayB．to hunt; dying out
    C．hunting; dying outD．hunting; dying down

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    科目： 来源：不详 题型：单选题

    It’s impossible for him to escape ________ this time; he made such a big mistake.
    A．to punish B．punishingC．being punishedD．having punished

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    科目： 来源：不详 题型：单选题

    ______ right in the center of the city, the park attracts a lot of tourists.
    A．Seating B．LaidC．SituatedD．Stood

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    科目： 来源：不详 题型：单选题

    The worst tornado of all time occurred in 1925, ______ three US states.
    A．affected B．affectingC．to affectD．affects

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