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    科目： 来源：不详 题型：单选题

    Some aspects of a pilot’s job _______ be boring,and pilots often _______ work at inconvenient hours.
    A．can; have toB．may; have to?
    C．have to; mayD．ought to; must?

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    科目： 来源：不详 题型：单选题

    He _______ more visits to his parents.He has been regretting not doing so since they passed away.
    A．should pay?
    B．would pay?
    C．should have paid?
    D．would have paid?

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    科目： 来源：不详 题型：单选题

    He must have been late for the conference yesterday, _______?
    A．didn’t heB．hasn’t he
    C．mustn’t heD．wasn’t he?

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    科目： 来源：不详 题型：单选题

    He _______ have completed his work；otherwise, he wouldn’t be enjoying himself by the seaside.
    A．shouldB．must?
    C．wouldn’tD．can’t?

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    科目： 来源：不详 题型：单选题

    —Can we ski on this mountain??
    —Of course.However, at no time _______ you do so alone.?
    A．couldB．might
    C．needD．must?

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    科目： 来源：不详 题型：单选题

    —May I smoke here??
    —If you _______, choose a seat in the smoking section.?
    A．shouldB．could?
    C．mayD．must?

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    科目： 来源：不详 题型：单选题

    —Are you coming to Alice’s party??
    —I’m not sure.I _______ go to the concert instead.
    A．mustB．would　?
    C．shouldD．might?

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    科目： 来源：不详 题型：单选题

    Mr Bush is on time for everything. How _______ it be that he was late for the opening ceremony?
    A．canB．should?
    C．mayD．must?

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    科目： 来源：不详 题型：单选题

    —I didn’t go to work yesterday because my car broke down.?
    —You _______ mine.I wasn’t using it then.?
    A．might borrow
    B．could have borrowed　?
    C．must have borrowed?
    D．ought to borrow?

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    科目： 来源：不详 题型：单选题

    A left-luggage office is a place where bags _______ be left for a short time, especially at a railway station.
    A．shouldB．can?
    C．mustD．will?

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