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You______ all those calculations! We have a computer to do all that sort of thin
You______ all those calculations! We have a computer to do all that sort of thin
游客
2025-03-20
32
管理
问题
You______ all those calculations! We have a computer to do all that sort of thing.
选项
A、wouldn’t have done
B、mustn’t have done
C、needn’t have done
D、hadn’t done
答案
C
解析
wouldn’t have done是虚拟形式;mustn’t have done实际上不存在这种用法,表示对过去情况的否定推测用couldn’t have done;needn’t have done表示做了不必做的事,符合句意;hadn’t done是过去完成时形式。
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