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    科目： 来源：不详 题型：单选题

    This building is both a secret and a mystery. No one shall be admitted into it ______ he can give the right password.
    A．ifB．asC．sinceD．unless

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    科目： 来源：不详 题型：单选题

    Now our school is four times ________ it was twenty years ago.
    A．whenB．whichC．thatD．what

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    科目： 来源：不详 题型：单选题

    — How long will it be _______ the president pays another visit to China?
    — It all depends.
    A．beforeB．untilC．sinceD．when

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    科目： 来源：不详 题型：单选题

    How can you expect him to make any improvement____ you never give him a chance to have a try?
    A．unlessB．whenC．untilD．even if

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    科目： 来源：不详 题型：单选题

    — You should have prepared your speech for the meeting, Mr. Smith.
    — Yes, I know. But how could I _____ the meeting date fixed so soon?
    A．whileB．asC．afterD．with

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    科目： 来源：不详 题型：单选题

    Helen plays the piano well, ____her favourite instrument is the violin.
    A．soB．yetC．orD．for

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    科目： 来源：不详 题型：单选题

    I’ve got a bit of a headache. It’s nothing much, _________.
    A．moreoverB．besidesC．thoughD．anyhow

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    科目： 来源：不详 题型：单选题

    Maria looked around on the playground _______ looking for something.
    A．even thoughB．even ifC．only ifD．as if

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    科目： 来源：不详 题型：单选题

    __________ she couldn’t understand was_________more and more students showed little interest in their lessons.
    A．What; whyB．That; whatC．What; because D．Why; that

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    科目： 来源：不详 题型：单选题

    We wouldn’t go abroad for our vacation _______ we could afford it.
    A．as ifB．so thatC．in caseD．even though

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