
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)