高一英语问问 we ( )the work so early withoutyour helpwe ( )the work so early withoutyour helpA couldn't finishB can't finish C couldn't have finishedD can't have finished为啥选C而不是选A呐?

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高一英语问问we()theworksoearlywithoutyourhelpwe()theworksoearlywithoutyourhelpAcouldn''tfinishBcan''tfinishC

高一英语问问 we ( )the work so early withoutyour helpwe ( )the work so early withoutyour helpA couldn't finishB can't finish C couldn't have finishedD can't have finished为啥选C而不是选A呐?
高一英语问问 we ( )the work so early withoutyour help
we ( )the work so early withoutyour help
A couldn't finish
B can't finish
C couldn't have finished
D can't have finished
为啥选C而不是选A呐?

高一英语问问 we ( )the work so early withoutyour helpwe ( )the work so early withoutyour helpA couldn't finishB can't finish C couldn't have finishedD can't have finished为啥选C而不是选A呐?
so early 透露出,工作已经完成了,因此应该用过去完成时

C

这个是一个虚拟语气的题目。。如果是A表示的只是一个事实。C是表示对过去的假设,如果没有你的帮助,但是事实上人家提供了帮助,我们也完成了任务,与事实相反。。
这个句子还可以把后半句放前面去,这是一个典型的without的含蓄虚拟语气。...

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这个是一个虚拟语气的题目。。如果是A表示的只是一个事实。C是表示对过去的假设,如果没有你的帮助,但是事实上人家提供了帮助,我们也完成了任务,与事实相反。。
这个句子还可以把后半句放前面去,这是一个典型的without的含蓄虚拟语气。

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这句话的含义是已经做完了,所以要用完成式表示过去的假设。
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