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It’s time that you_____with the relief work in the flood-stricken area after the awful typhoon.
A.must helpB.can helpC.helpedD.have helped
C

试题分析:考查虚拟语气:句意:在可怕的台风后,你们是时候帮助洪水泛滥地区的救援工作了。这里用了句型“It’s time that+从句”正是…的时候了,从句中的谓语用should do或是一般过去式,表示虚拟语气,选C。
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