◎ 题干
—What're Sarah and Mary doing right now?
—_____ reading.
[     ]
A. She's
B. We're
C. They're
◎ 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“—What're Sarah and Mary doing right now?—_____ reading.[ ]A. She'sB. We'reC. They're…”主要考查了你对  【人称代词】【主谓一致】  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。