◎ 题干
When he looked up,he suddenly found himself________by a group of teenagers,________looked at him
anxiously.
[     ]
A.to be surrounded;which
B.surrounded;who
C.be surrounded;who
D.having been surrounded;which
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“When he looked up,he suddenly found himself________by a group of teenagers,________looked at him anxiously.[ ]A.to be surrounded;whichB.surrounded;whoC.be sur…”主要考查了你对  【过去分词】【非限制性定语从句】  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。