◎ 题干
--Why are your eyes so red? You _______ have slept well last night.
A.can'tB.mustn'tC.needn'tD.won't
---Yeah, I stayed up late writing a report.
◎ 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“--Why are your eyes so red? You _______ have slept well last night.A.can'tB.mustn'tC.needn'tD.won't---Yeah, I stayed up late writing a report.…”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。