the working efficiency, the boss allows the employees to have a coffee break. A. Improving

发布时间：2020-08-16 16:13:10

    the working efficiency, the boss allows the employees to have a coffee break.
A. Improving
B. To improve
C. Having improved
D. Improved

网友回答

A. Improving
(答案→)B. To improve
C. Having improved
D. Improved
解析：考查不定式做目的状语，句意是：为了提高工作效率，老师允许职员喝杯咖啡休息一下。选A。
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