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    科目： 来源：不详 题型：单选题

    -- Did you visit your grandparents yesterday?
    --Yes, and when I got there, they _____ in the fields .
    A．workedB．have worked C．were workingD．had worked

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    科目： 来源：不详 题型：单选题

    Barbara is easy to recognize as she’s the only one of the women who ______ evening dress.
    A．wearB．wearsC．has wornD．have worn

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    科目： 来源：不详 题型：单选题

    After school we went to the reading-room to do some reading ,only to be told that it _______.
    A．was decoratedB．had decorated
    C．had been decoratingD．was being decorated

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    科目： 来源：不详 题型：单选题

    The calculations, had they been done by hand, ______all practical value by the time they were finished.
    A．had lostB．would loseC．should have lostD．would have lost

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    科目： 来源：不详 题型：单选题

    Because the shop_______, all the T-shirts are sold at half price.
    A．has closed downB．closed down
    C．is closing downD．had had closed down

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    科目： 来源：不详 题型：单选题

    ---Can I join your club, dad?
    ---You can when you _______ a bit older.
    A．are gettingB．will getC．getD．will have got

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    科目： 来源：不详 题型：单选题

    In recent years the consumption of aspirin _______ enormously in America.
    A was increasing    B. has increased    C. had increased    D. will be increasing

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    科目： 来源：不详 题型：单选题

    China's present environment situation is from bad to worse and if we _________ now to protect the environment, we’ll live to regret it.
    A．hadn’t actedB．haven’t actedC．don’t actD．won’t act

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    科目： 来源：不详 题型：单选题

    The central heating system of this office building is down and several workers ______ it right now.
    A．had repairedB．have repairedC．repairedD． are repairing

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    科目： 来源：不详 题型：单选题

    — Mum, I really think Dad should have a break and get relaxed.
    —Yes. He_________ too long.
    A．readB．had readC．has been readingD．is reading

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