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    科目： 来源：不详 题型：单选题

    The dangerous virus ____ in the next few weeks in the laboratory can cause fatal diseases.
    A．studyingB．studiedC．to studyD．to be studied

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    科目： 来源：不详 题型：单选题

    He found the manager _____ by letters and papers and _____ very worried.
    A．surrounding; lookedB．surrounded; looked
    C．surrounding: lookingD．surrounded; looking

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    科目： 来源：不详 题型：单选题

    Dina, ______ for months to find a job as a waitress, finally took a position at a local
    advertising agency.
    A．strugglingB．struggledC．having struggledD．to struggle

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    科目： 来源：不详 题型：单选题

    A lunar probe-Chang’e-2_______ as much as 2 tons was sent up into space on October12010.
    A．weighingB．weighed
    C．to be weighedD．being weighed

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    科目： 来源：不详 题型：单选题

    ______ of danger in the street last night, she had to go home, with a friend following her.
    A．To be warnedB．WarnedC．Having warnedD．Warning

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    科目： 来源：不详 题型：单选题

    Don’t leave the water ______ while you brush your teeth.
    A．run B．running C．being run D．to run

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    科目： 来源：不详 题型：单选题

    His actions could lead to him ______ his job.
    A．lose B．losing C．to lose D．being lost

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    科目： 来源：不详 题型：单选题

    We know such people are not ___.
    A．to rely onB．to be relied uponC．to be reliedD．to rely upon

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    科目： 来源：不详 题型：单选题

    Bats are surprisingly long-lived creatures, some ___ a life span of around 20 years.
    A．haveB．had C．having D．to have

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    科目： 来源：不详 题型：单选题

           by the advances in technology, many farmers have set up farms on their land.
    A．Being encouraged B．Encouraging
    C．having encouragedD．Encouraged

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