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    科目： 来源：不详 题型：单选题

    It is the second time that you have been late, ______?
    A．haven’t you B．isn’t itC．is itD．have you

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    科目： 来源：不详 题型：单选题

    I told them not everybody could run as fast as you did，________？(2011·重庆)
    A．could heB．didn't I
    C．didn't youD．could they

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    科目： 来源：不详 题型：单选题

    He must be helping the old man to water the flowers，________？
    A．is heB．isn't he
    C．must beD．mustn't he

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    科目： 来源：不详 题型：单选题

    It's the first time that he has been to Australia，________？
    A．isn't heB．hasn't heC．isn't itD．hasn't it

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    科目： 来源：不详 题型：单选题

    (2013·甘肃河西五市一模)Look! The ground is wet. It must have rained last night, ________？
    A．hasn't it B．hadn't it
    C．mustn't it D．didn't it

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    科目： 来源：不详 题型：单选题

    Nothing that you say can change his mind, ________？
    A．do you B．don't you
    C．can it D．can't it

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    科目： 来源：不详 题型：单选题

    —Where _______?
    —I got caught in the traffic, or I would have been here sooner.
    A．did you goB．had you gone
    C．have you beenD．were you going

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    科目： 来源：不详 题型：单选题

    There is no doubt that eating organic food will make you healthier, ________？
    A．will itB．does it
    C．is thereD．is it

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    科目： 来源：不详 题型：单选题

    Fighting an artificial greenhouse effect seems to be the greatest of environmental challenges, ________？
    A．isn't itB．does it
    C．doesn't itD．is it

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    科目： 来源：不详 题型：单选题

    Look！The ground is wet.It must have rained last night，________？
    A．hasn’t itB．didn’t it
    C．mustn’t itD．hadn’t it

    查看答案和解析>>

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