◎ 题干
Look at the naughty boy! You ______ have taught him how to behave himself.
A.mustB.mayC.canD.should
◎ 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“Look at the naughty boy! You ______ have taught him how to behave himself.A.mustB.mayC.canD.should…”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。