The last thirty years _____ the greatest number of laws stopping our rights and progress,until today we have reached a stage ____ we have almost no rights at all.A.saw,whichB.have seen,thatC.saw,whereD.have seen,where
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D解析本题考查时态和定语从句。“the last/past +时段”常与现在完成时连用；stage后接定语从句时，如引导词作状语要用where。