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    科目： 来源：不详 题型：单选题

    That day, we______ for the train station when Tom fell and hurt his legs badly.
    A．have been leavingB．were just about to leave
    C．have leftD．are just going to leave

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    科目： 来源：不详 题型：单选题

    A new laptop costs about _____ of a second-hand one.
    A．the price of three timesB．three times the price
    C．as much as the three times priceD．three times more than the price

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    科目： 来源：不详 题型：单选题

    It was nearly an hour _____________ the sleeping pill _____________ effect.
    A．when; tookB．before; tookC．since; takesD．before; would take

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    科目： 来源：不详 题型：单选题

    It was some time _______ I realized the truth.
    A．thatB．when C．before D．since

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    科目： 来源：不详 题型：单选题

    Scientists say it may be five or six years ____ it is possible to test this medicine on human patients.
    A．sinceB．afterC．beforeD．when

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    科目： 来源：不详 题型：单选题

    ________ the past, leaving the sadness behind, _____ you’ll see the door of a new bright world open before you.
    A．Forget; andB．Forgetting; andC．Forget; /D．To forgetting; /

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    科目： 来源：不详 题型：单选题

    The house they are living now is ______ our house.
    A．twice the size asB．the size twice of
    C．twice as the size ofD．twice the size of

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