could you tell me if he_______finish the work on time?A.could B.was able to C.is able to D.would be able选哪个?为什么?

分类: 作业答案 • 2021-12-19 16:28:55

问题描述：

could you tell me if he_______finish the work on time?
A.could B.was able to C.is able to D.would be able
选哪个?为什么?

答