问题
选择题
______ the working efficiency,the boss allows the employees to have a coffee break. [ ]
A. Improving
B. To improve
C. Having improved
D. Improved
答案
答案：B
搜题请搜索小程序“爱下问搜题”
______ the working efficiency,the boss allows the employees to have a coffee break. [ ]
A. Improving
B. To improve
C. Having improved
D. Improved
答案：B