I you, but I was too busy then.A. will help B. helpedC. could have helped D. should have

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编辑：chaxungu时间：2026-04-27 02:55:22分类：高中英语题库

【题目】 I _______ you, but I was too busy then.

A. will help B. helped

C. could have helped D. should have

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【答案】C

【解析】

试题分析：考查含情态动词的虚拟语气。句意：我本来可能已经帮助了你，但是那时我太忙。Could have done表示可能已经做了某事，故选C。