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You __________ all those calculations! We have a computer to do that sort of thing.
A.needn'thavedoneB.mustnothavedoneC.shouldn'thavedoneD.cannothavedone...
A.needn'thavedone
B.mustnothavedone
C.shouldn'thavedone
D.cannothavedone 展开
B.mustnothavedone
C.shouldn'thavedone
D.cannothavedone 展开
1个回答
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【答案】:A
考查情态动词。needn’thave done sth.意为“本不必做某事,但实际上做了”,没有must nothave done sth.这种否定推测的表达方式,shouldn’t have done sth.意为“不该做某事但做了”,can not have donesth.意为“不可能做某事”,句意为“你本不必做那些计算,那些事情可由我们的电脑来做”。故选A。
考查情态动词。needn’thave done sth.意为“本不必做某事,但实际上做了”,没有must nothave done sth.这种否定推测的表达方式,shouldn’t have done sth.意为“不该做某事但做了”,can not have donesth.意为“不可能做某事”,句意为“你本不必做那些计算,那些事情可由我们的电脑来做”。故选A。
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