◎ 题干
--Mary, what made you so sad ?
--- _____ .
[     ]
A. To lose my book
B. Lost my book
C. Because losing my book
D. Losing my book
◎ 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“--Mary, what made you so sad ? --- _____ .[ ]A. To lose my bookB. Lost my bookC. Because losing my bookD. Losing my book…”主要考查了你对  【动名词】  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。