问题
选择题
The children kept their eyes _____ when they _____ Liu Qian's tricks. [ ]
A. opening; looked
B. open; were watching
C. opening; watched
D. open; were looking
答案
答案：B
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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：B