题目

---You could have asked Mr. Richards for help. He is kind-hearted. ----Yes. But that ____him a whole day. A.     would have taken   B. had taken  C. would take  D. would be taken 答案：A 解析: ：本句为承前省略的虚拟语气主从复合句，还原后为：If I had asked Mr. Richards for help, that would have taken him a whole day.

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