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    精英家教网 > 高中英语 > 题目详情
    — Where is Mr. Wang?
    — He is not here. He must _______ the students’ papers in the office.
    A．correctB．have correctedC．be correcting D．corrects
    C

    试题分析：考查时态。句意：—王先生在哪里？—他不在这里。他一定是在办公室里批改学生的试卷。根据句意是指现在正在发生的事情，故使用must be doing对现在的情况进行推测。故C正确。
    点评：时态题的考查关键是抓住句子的上下文含义和句中的时间状语。要根据时间状语来选择合适的时态，在平时的学习中要注意积累有关时态的用法和各种时态的特殊之处。
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