I'msorryyou'vebeenwaitingsolong,butit'llstillbesometime___

发布时间:2020-08-04 21:51:29

I'm sorry you've been waiting so long, but it'll still be some time ________ Brian gets back.A.beforeB.sinceC.tillD.after

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A解析考查状语从句。从题干it'll可知用before; It's...since…;It will…before…。如果记住这两个结构可很容易选出
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