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    科目： 来源：不详 题型：单选题

    If he ___________ on time, we will go without him.
    A．doesn’t come
    B．don’t come
    C．didn’t come
    D．comes

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    科目： 来源：不详 题型：单选题

    If we don’t save energy, it _____ some day.
    A．will be run outB．has been run out
    C．will run outD．has run out

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    科目： 来源：不详 题型：单选题

    The passengers’ (乘客) families were        to keep calm as soon as they heard the bad news.
    A．too sadB．sad enough
    C．enough sadD．so sad

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    科目： 来源：不详 题型：单选题

    Difficulties are nothing _____we are not afraid of them.
    A．forB．asC．ifD．whether

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    科目： 来源：不详 题型：单选题

    If it ____rain tomorrow , we will go camping.
    A.don’t      B. won’t       C. doesn’t

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    科目： 来源：不详 题型：单选题

    If we ______ take environmental problems seriously, the earth _______ worse and worse.
    A．don’t; will beB．won’t; isn’t
    C．won’t; isD．don’t; won’t be

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    科目： 来源：不详 题型：单选题

    Talk to your teacher and you will get help ________ you have a problem.
    A．unlessB．if
    C．untilD．so

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    科目： 来源：不详 题型：单选题

    —Excuse me, could you please tell me if the sports meeting ________ on time?
    —Hard to say. If it ________ tomorrow, we’ll have to put it off.
    A．will hold; rainsB．will be held; rains
    C．will be held; will rainD．holds; will rain

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    科目： 来源：不详 题型：单选题

    2. --- Give me a call as soon as you ______ in Hainan.
    --- OK, I will
    A．arriveB．have arrived
    C．will arriveD．arrived

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    科目： 来源：不详 题型：单选题

    If our government ______ attention to controlling food safety now, our health ______ in danger.
    A．won’t pay; isB．doesn’t pay; was
    C．won’t pay; will be D．doesn’t pay; will be

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