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    科目： 来源：不详 题型：单选题

    －Why does the river smell terrible?
    －Because large quantities of water______．
    A．have been pollutedB．is being polluted
    C．has been pollutedD．have polluted

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    科目： 来源：不详 题型：单选题

    A warm welcome _______to the Russian guests at the airport tomorrow morning.
    A．is givenB．has been givenC．is going to giveD．will be given

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    科目： 来源：不详 题型：单选题

    Ever since my brother graduated from the university, he _______ in the present company for 15 years and he is now chief engineer of the company  .
    A．workedB．has been workingC．is workingD．works

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    科目： 来源：不详 题型：单选题

    The professor you referred to in the letter______ us students three lectures by next Monday.
    A．has givenB．will givenC．will have givenD．Gave

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    科目： 来源：不详 题型：单选题

           the newspaper carefully ,and we’ll find different types of articles on the pages
    A．ReadB．ReadingC．To readD．Having read

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    科目： 来源：不详 题型：单选题

    —Would you please keep silent? The weather report ______ and I want to listen.
    A．is broadcast B．has been broadcast
    C．was broadcastD．is being broadcast

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    科目： 来源：不详 题型：单选题

    —Oh, Mum, just a few minutes．
    —Hurry up, Harry, or by the time you pack your belongings, the flight ____.
    A．has leftB．will have leftC．had leftD．will be leaving

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    科目： 来源：不详 题型：单选题

    —Mr Harry, we want to hear what you think about the reform being carried out in our school.
    —OK, I        to that.
    A．am coming B．have comeC．cameD．had come

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    科目： 来源：不详 题型：单选题

    — Have you heard me?
    — I’m sorry, I        you        to me.
    A．don’t know, are speakingB．didn’t know, were speaking
    C．don’t know, were speakingD．didn’t know, are speaking

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    科目： 来源：不详 题型：单选题

    — You’ve left the light on.
    — Oh, so I have. _____ and turn it off.
    A．I goB．I’ve goneC．I’ll go D．I’m going

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