◎ 题干

.-----I_____ asleep while I was reading.
-------It doesn’t matter.
A.should have fallenB.must have fallenC.could fallD.must fall
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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_____ asleep while I was reading.-------It doesn’t matter.A.should have fallenB.must have fallenC.could fallD.must fall…”主要考查了你对  【虚拟语气】【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。