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    【题目】Overloaded with work, school teachers now get far less sleep than they ______.

    A. shall B. should

    C. may D. might

    【答案】B

    【解析】试题分析：本题主要考查情态动词。

    A项，shall “会；将；必须”，用于第二、三人称时，表示说话人给对方的命令，警告，允诺或威胁；

    B项，should “应该；就；可能；将要”；

    C项，may “可以，能够；可能，也许；祝，愿；会，能”；

    D项，might “可以；或许；应该”。

    根据句子大意可知，这里指“他们本该有的睡眠时间”，表示“应该”，故排除A、C项；D项 might 作“应该”之意时，语气较为缓和，常常翻译为“不妨...”，不符合句意。故正确答案为B。

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