来自梁永东的问题
【高一英语选择题需要理由It'ssaidthatonekindoftimemachine_____byasceientist,withwhichmancantravelwhereverhewouldlike.A.hadbeeninventedB.hasbeeninventedC.hadbeendicoveredD.hasdiscovered】
高一英语选择题需要理由
It'ssaidthatonekindoftimemachine_____byasceientist,withwhichmancantravelwhereverhewouldlike.
A.hadbeeninventedB.hasbeeninvented
C.hadbeendicoveredD.hasdiscovered
