16.It ____ long before we ____ the result of the experiment.A.will not be,will know B.is ,wil
16.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]
可是不会解释为什么B不对
人气：167 ℃ 时间：2020-01-29 22:03:28
解答
It __C. will not be__ long 不会太长的.
主将从现.这是主句,下面从句.
before we _know___ the result of the experiment
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