◎ 题干
—Are _____ their books?    
—Yes, _____ are.
[     ]
A. these; their
B. those; their
C. this; they
D. those; they
◎ 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“—Are _____ their books? —Yes, _____ are.[ ]A. these; their B. those; their C. this; they D. those; they…”主要考查了你对  【人称代词】【指示代词】  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。