◎ 题干
— Who’s that boy reading in the garden? Is it David?
— It ____________ be David. I saw him in the classroom just now.
A.mustB.can’t
C.mayD.shouldn’t
◎ 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“— Who’s that boy reading in the garden? Is it David?— It ____________ be David. I saw him in the classroom just now.A.mustB.can’tC.mayD.shouldn’t…”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。