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13.---How dangerous it was!
---Yes,but for the passer-by's quick action,the girl _____.(  )
A.had been drownedB.might be drowned
C.would have been drownedD.must have been drowned

分析 -好险啊!-嗯,要不是路人反应快,这这小女孩就溺水了.

解答 答案:C 句意表达的是相反假设,要用虚拟;对过去的虚拟,要用情态动词加完成时态;must have done表示对过去的推测,不符合句意.故选C.

点评 虚拟语气是表示与事实相反的假设,构成方式有:对现在或将来,条件句中用一般过去时态,主语用情态动词加动词原形;对过去,条件句中用过去完成时态,主语用情态动词加完成时态.学习时,要牢记构成方式.

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