If I ________ that she was ill,I would have gone to see her.

问题描述:

If I ________ that she was ill,I would have gone to see her.
A.knew B.know C.have known D.had known

答案D 此句为虚拟语气,通过主句谓语动词可判断此句是与过去事实相反,故选D.查看原帖>>