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    科目： 来源：不详 题型：单选题

    ----This returned Chinese scholar has become one of the top experts in this field.
    ----Yes,I know him very well.He____in Africa with animals for eight years.
    A．has workeB．had workedC．workedD．has been working

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    科目： 来源：不详 题型：单选题

    It ________ nearly two weeks ______ I had received his letter.
    A．is, thatB．was, thatC．is sinceD．was, since

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    科目： 来源：不详 题型：单选题

    It is five years since my dear aunt _______ here.
    A．leftB．has leftC．is leftD．had left

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    科目： 来源：不详 题型：单选题

    Wherever I ____these days. I always carry my umbrella.
    A．am goingB．shall goC．goD．should go

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    科目： 来源：不详 题型：单选题

    Oh, it's you, I'm sorry I ____know you ____here.
    A．don't, areB．didn't, areC．didn't ,wereD．don't, were

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    科目： 来源：不详 题型：单选题

    I___ to have another try if I get another chance.
    A．have been meaningB．meanC．am meaninD．have meant

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    科目： 来源：不详 题型：单选题

    -----What _____?
    -----I______my key and can't open the door.
    A．happened, lostB．has happened, lost
    C．happens, have lostD．has happened, have lost

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    科目： 来源：不详 题型：单选题

    The students _____ ￡50 a year to cover the cost of books and stationery.
    A．giveB．are given
    C．have givenD．to give

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    科目： 来源：不详 题型：单选题

    -Jack is ill in hospital.  --Really, I _____ him right now.
    A．will visitB．am going to visitC．am to visitD．am about to visit

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    科目： 来源：不详 题型：单选题

    -Have you seen the film? 
    --Yes. I _______ it three times when I was in Tokyo.
    A．sawB．had seenC．have seenD．was seeing

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