题目内容
The lady walked around the shops, _______ an eye out for bargains.( )
A. keep B. kept C. keeping D. to keep
C
句子主语lady和keep 之间是主动关系, 而且walk和keep 同时发生。
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题目内容
The lady walked around the shops, _______ an eye out for bargains.( )
A. keep B. kept C. keeping D. to keep
C
句子主语lady和keep 之间是主动关系, 而且walk和keep 同时发生。