—Such a mistake could have been avoided.

—Unfortunately, he ________ the mistake again and again.

A. repeated         B. would repeat  C. had repeated      D. would have repeated

A


解析:

因?yàn)閏ould have done是對(duì)過去發(fā)生的事表示遺憾，所以答語也應(yīng)該是指他在過去一再犯這樣的錯(cuò)誤。

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