We could not have fulfilled the task in time if it _______ for their help.A.was notB.is no
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We could not have fulfilled the task in time if it _______ for their help.
A.was not
B.is not
C.had not been
D.has not been
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正确答案:C
解析:该题考查的还是虚拟语气的用法,表示与过去事实相反的假设,句式结构为:If+主语+ had+过去分词,主语+should/would/could/might+have十过去分词。例如:If I hand’t run out of ink,I might have finished writing the paper。(要是还有墨水的话,我就能写完那篇论文了。)
