题目内容

40.Hi, Bill, you are late.

Sorry, I would have come sooner. I ________ that you were waiting.

A. haven't known

B. hadn't known

C. didn't know

D. don't know

 

答案:C
提示:

题目考察一般过去时态的意义与用法

 


练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网