题目内容
No one knows how the huge rocks _______ and _______ without our modern machines eight hundred years ago.
A. were cut; moved B. were cut; move C. are cut; moving D. are cut; moved
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题目内容
No one knows how the huge rocks _______ and _______ without our modern machines eight hundred years ago.
A. were cut; moved B. were cut; move C. are cut; moving D. are cut; moved