I saw Peter smoking in his office yesterday afternoon.--But he __far less than he used to.

问题描述:

I saw Peter smoking in his office yesterday afternoon.--But he __far less than he used to.
A smoked B was smoking C smokes D has smoked ,选哪,原因,

C .意思是“我昨天下午看见Peter在他办公室吸烟.但是他现在远没有过去抽得多.”比较级后面的used to表示过去常常做某事(现在不做),所以是和过去相比,那么谓语动词就该用现在时态.