It sounded like a good idea, but _______it didn’t work. A. on average B. in theory C. in practice D....
2022-10-26 22:16:47 158次 2015-2016学年山西康杰中学高二上期中英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It sounded like a good idea, but _______it didn’t work.
A. on average B. in theory
C. in practice D. on the spot
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