题目内容

No one knows how the huge rocks   and ___ without our modern machines eight hundred years ago.
A.are cut; movedB.were cut; move
C.are cut; movingD.were cut; moved
D
根据时间状语可知从句中叙述的为过去发生的事情, cut和moved为并列谓语所以
用过去时态,故选D
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