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Ifwehadtakensucheffectivemeasuresmuchearlier,theriversoseriouslynow.A.isnotpollutedB.wouldnotbepollutedC.hadnotbeenpollutedD.wouldnothavebeenpulluted说是因为与现在相反虚拟语气中的“与事实相反

题目详情
If we had taken such effective measures much earlier,the river ________ so seriously now.
A.is not polluted B.would not be polluted
C.had not been polluted D.would not have been pulluted
说是因为与现在相反 虚拟语气中的“与事实相反”是看从句还是主句?这道题从句是与过去相反 主句是与现在相反
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答案和解析
虚拟语气中的“与事实相反”是看从句还是主句?
答:从句的谓语 在时态上看从句,主句的谓语 在时态上看主句