— You could have asked Mr. Richard for help. He’s kind-hearted.— Yes. But that him a whol

问题补充：

— You could have asked Mr. Richard for help. He’s kind-hearted.

— Yes. But that him a whole day.

A. would have taken

B. had taken

C. would take

D. took

答案：

(答案→)A. would have taken

B. had taken

C. would take

D. took

解析：考查虚拟语气。句意：—你本可以向Mr. Richard求助，他是一个好心肠的人。—是的。但是那却会花掉他一整天的时间。本句是一个与过去事实相反的虚拟语气。根据句意说明前者根本没有向Mr. Richard求助，那么要花掉Mr. Richard一整天的时间也是不可能的事情，同时这与过去事实相反，故使用情态动词+have done的形式。故A正确。