________the working efficiency,the boss allows the employees to have a coffee break. A.Improving B.T...
2022-11-27 10:39:25 151次 2013-2014学年高考二轮复习训练:专题2 非谓语动词英语试卷(解析版) 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容:
________the working efficiency,the boss allows the employees to have a coffee break.
A.Improving B.To improve
C.Having improved D.Improved
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