◎ 题干
When the man came in, gun in hand, we all stood there, ________.
A.frightened B.frightening
C.being frightenedD.having frightened
◎ 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“When the man came in, gun in hand, we all stood there, ________.A.frightened B.frighteningC.being frightenedD.having frightened…”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  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。