— 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
网友回答
(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。