16.It ____ long before we ____ the result of the experiment.
It ____ long before we ____ the result of the experiment.
A.will not be,will know B.is ,will know C.will not be ,know D.is ,know
,主将从现,那这是什么从句啊?
人气：374 ℃ 时间：2020-03-27 11:24:23
解答
时间状语从句
not.before.跟not .until 类似.
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