◎ 题干
—Did you know ________ at the school gate?
—Maybe his friends.

[     ]

A. who is he waiting for
B. who he was waiting for
C. who he is waiting for
◎ 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“—Did you know ________ at the school gate?—Maybe his friends.[ ]A. who is he waiting for B. who he was waiting for C. who he is waiting for …”主要考查了你对  【过去进行时】【宾语从句】  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。