◎ 题干
—Are those your pen friends?
—Yes, _____.
[     ]
A. they are
B. they're
C. they are not.
D. they aren'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“—Are those your pen friends?—Yes, _____.[ ]A. they areB. they'reC. they are not.D. they aren't…”主要考查了你对  【一般疑问句】  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。