Ifyou leaveearlyonweekdays,doitquietly.Theothercollea...

问题详情：

If you　　　leave early on weekdays, do it quietly. The other colleagues are also dying to have an early leave.

A. can              B. must         C. should           D. may

【回答】

B

知识点：情态动词

题型：选择题