.---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

下列属于宏观市场环境的有（）。

A.人口环境

B.经济环境

C.顾客

D.社会人文环境

E.中介单位