The boss says that we___leave the company before 6:30.This is an order.
问题描述：
The boss says that we___leave the company before 6:30.This is an order.
A.don't B.must C.need D.may not
答
选B,must .老板说我们在6：30前必须离开公司,这是命令.这A/B/C/D 四个选项里,表示命令语气的只有B,must