◎ 题干
The children kept their eyes _____ when they _____ Liu Qian's tricks.
[     ]
A. opening; looked
B. open; were watching
C. opening; watched
D. open; were looking
◎ 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“The children kept their eyes _____ when they _____ Liu Qian's tricks. [ ]A. opening; looked B. open; were watching C. opening; watched D. open; were lo…”主要考查了你对  【形容词】【过去进行时】  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。