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    科目： 来源：不详 题型：单选题

    ----- Can I go back home now? ----- You______ to leave until you ______ your work.
    A．won’t allow; finishB．won’t be allowed; will finish
    C．won’t be allowed; have finishedD．won’t allow; will finish

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    科目： 来源：不详 题型：单选题

    With the help of high technology, many new substances（物质）______in the past years.
    A．discoveredB．have discoveredC．had been discoveredD．have been discovered

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    科目： 来源：不详 题型：单选题

    She said that I could use her car while mine _________________.
    A．was repairedB．repairedC．was being repairedD．would be repaired

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    科目： 来源：不详 题型：单选题

    . ---- Do you know our hometown at all?
    ---- No, this is the first time I ____ here.
    A．wasB．have beenC．cameD．am coming

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    科目： 来源：不详 题型：单选题

    . ---- How long ____ at this job?
    ---- Since 1990.
    A．were you employedB．have you been employed
    C．had you been employedD．will you be employed

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    科目： 来源：不详 题型：单选题

    – Why isn’t the recorder ready yet?
    --- I’m sorry, sir. It ______ in the factory.
    A．is being repairedB．is repairedC．has been repairedD．hasn’t repaired

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    科目： 来源：不详 题型：单选题

    --When _________ the training course begin?
    --Next Monday.
    A．hasB．is going toC．doesD．did

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    科目： 来源：不详 题型：单选题

    I ______ Mr White at that time, otherwise I wouldn’t have asked you for some information about him.
    A．hadn’t knownB．didn’t knowC．don’t knowD．haven’t known

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    科目： 来源：不详 题型：单选题

    It’s only six o’clock now; Little Tom should be up ,though, because he _____ for nine hours.
    A．has been sleepingB．had been sleepingC．has sleptD．had slept

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    科目： 来源：不详 题型：单选题

    —It’s only ten minutes’ walk; I could have got there on foot.
    — Yes. A taxi _______ not at all necessary.
    A．wasB．had beenC．has beenD．is

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