Don't go out of the office until you___ your assignment.a.finish _英语解答

Don't go out of the office until you___ your assignment.
a.finish b.have finish
which one is better?

人气：103 ℃　时间：2020-03-10 03:03:01

解答

A
因为until引导的是时间状语从句,所以用一般现在时态表示将来时态
这个是规定
如果用B,一定是have finished
用现在完成时态