◎ 题干
He walked up and down the room for half an hour, _______ behind him.
A.with his hands claspingB.his hands clasped
C.his hands were claspedD.as his hands clasped
◎ 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“ He walked up and down the room for half an hour, _______ behind him.A.with his hands claspingB.his hands claspedC.his hands were claspedD.as his hands clasped…”主要考查了你对  【独立主格结构】  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。