Theyareuncertain________thetime

发布时间：2020-07-28 16:15:03

They are uncertain________ the time the mine________．A.about; blow upB.about; will be blown upC.for; blow upD.for; will blow up

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B解析be uncertain about是固定短语修饰time的定语从句应用将来时，故选择B项．
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