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    科目： 来源：不详 题型：单选题

    —I counted sheep, I drank milk and I tried everything, but nothing helped.
    —It seems you _____ too much recently. Try some sleeping pills.
    A．workedB．workC．had workedD．have been working

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    科目： 来源：不详 题型：单选题

    —Have you graduated from college?
    —Yes, ________.
    A．I studied French for two years.
    B．I have been studying French.
    C．I have studied French for two years.
    D．I had studied French for two years.

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    科目： 来源：不详 题型：单选题

    Do you know how many people ______ up to now?
    A．have invitedB．have been invitedC．had invited D．had been invited

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    科目： 来源：不详 题型：单选题

    An exhibition of paintings ___ at the museum next week.
    A．is being heldB．is to be heldC．is holdingD．will hold

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    科目： 来源：不详 题型：单选题

    It’s very dangerous to _______ these viruses without any protection.
    A．be exposed toB．expose toC．exposeD．be exposing to

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    科目： 来源：不详 题型：单选题

    I have to see the doctor this afternoon because I ____ a lot lately.
    A．have been coughingB．had coughedC．coughedD．cough

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    科目： 来源：不详 题型：单选题

    He will have learned English for eight years by the time he _______ from the university next year．
    A．will graduateB．will have graduatedC．graduatesD．is to graduate

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    科目： 来源：不详 题型：单选题

        Is there anything wrong , Bob ? You look sad .
         Oh ,nothing much . In fact , I      of my friends back home .
    A．have just thoughtB．was just thinking
    C．would just thinkD．will be just thinking

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    科目： 来源：不详 题型：单选题

    I can guess you were in a hurry. You       your sweater inside out.  
    A．had wornB．wore C．were wearingD．are wearing

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    科目： 来源：不详 题型：单选题

    －Have you seen the film Lost in Thailand?
    －Oh, no. I ___ my homework all day yesterday.
    A．had doneB．didC．have doneD．was doing

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