问题 选择题

If It had been possible, I would have helped him, but I ______ too busy the.

A.had been

B.would be

C.were

D.was

答案

答案:D

 前面是一个与过去事实相反的虚拟语气,but引导的真实情况。

选择题
单项选择题 共用题干题