题目内容

(安徽卷26).Bob would have helped us  yesterday ,but he          .

A. was busy         B. is busy           C. had been busy        D. will be busy

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