There are many computers in the office.Make sure _____ the door before you leave.

There are many computers in the office.Make sure _____ the door before you leave.
A you will lock B you lock 选哪个 为什么?
英语人气:762 ℃时间:2019-10-17 07:15:35
优质解答
B.make sure 后面用一般现在时表将来.
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