You______all those clothes by hand! You have a washing-machine to do that kind of thing.

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问题 You______all those clothes by hand! You have a washing-machine to do that kind of thing.

选项 A、mustn’ t have washed
B、cannot have washed
C、needn’ t have washed
D、shouldn’ t wash

答案C

解析 本句的意思是:你根本用不着用手洗那些衣服!你可以用那台洗衣机洗。情态动词辨析题::needn’t have done表示“不必做而做了”;must have done表示对过去事实的肯定推测,“过去一定发生”,不能用其否定形式;cannot have done表示“过去不可能发生”;shouldn’t wash意为“不该做(指义务性,还未做)”。
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