◎ 题干

—I don’t know why Tom was absent from yesterday’s meeting.
—He must have been sick, _______?
A.isn’t heB.didn’t heC.wasn’t heD.mustn’t he
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—I don’t know why Tom was absent from yesterday’s meeting.—He must have been sick, _______?A.isn’t heB.didn’t heC.wasn’t heD.mustn’t he…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。