◎ 题干
Tom ____his homework yesterday, because he was in hospital all day.
A.can’t finishB.couldn’t finishC.couldn’t have finishedD.mustn’t finish
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Tom ____his homework yesterday, because he was in hospital all day.A.can’t finishB.couldn’t finishC.couldn’t have finishedD.mustn’t finish…”主要考查了你对  【情态动词】  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。