If he ____you yesterday,he ___you about the important meeting

问题描述:

If he ____you yesterday,he ___you about the important meeting
A saw, would be tolk
B had seen,would have told
C saw,would tell
D had seen,would be told

B 虚拟语气,与过去事实相反,主句用would/should/could/might+have done,从句用过去完成时had+过去分词