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He hesitated about the brake, otherwise the accident ______.A.could have been avoidedB.could hav A.

He hesitated about the brake, otherwise the accident ______.A.could have been avoidedB.could hav A. 46. He hesitated about the brake, otherwise the accident ______. A.could have been avoided B. could have avoided C. would have avoid D. should have been avoided

这道题的正确答案是 A.could have been avoided


解析

句子前半部分 "He hesitated about the brake" 是过去的事实,
后半部分 "otherwise" 表示“否则”,意味着对过去虚拟情况的假设。

虚拟语气的结构:

表示与过去事实相反的条件或结果:could / would / might + have + 过去分词

事故与主语 "accident" 之间是被动关系(事故被避免),所以必须用被动式 been avoided

 

看选项:

A.could have been avoided ✅(虚拟语气 + 被动)

B.could have avoided ❌(主动,句子中主语不对,accident 不能主动避免)

C.would have avoid ❌(avoid 是原形,不正确)

D.should have been avoided ❌("should have been" 表示“本应该被避免”,但这里是虚拟条件句,表示“可能避免”,不是“义务或应该”的意思,所以用 "could" 更合适)

 

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