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    精英家教网 > 高中英语 > 题目详情
    The light is off. They _____.

    A. must go to bed
    B. must have went to bed
    C. must went to bed
    D. must have gone to bed
    D
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    科目：高中英语 来源：专项题 题型：单选题

    The light is off. They _____.
    [     ]
    A. must go to bed
    B. must have went to bed
    C. must went to bed
    D. must have gone to bed

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