◎ 题干
A: Whose book is this?
B: It ______ be Joan's. There is her name on the cover.
[     ]
A. might
B. may
C. must
D. shall
◎ 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“A: Whose book is this? B: It ______ be Joan's. There is her name on the cover. [ ]A. might B. mayC. mustD. shall …”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。