题目内容

The building_______ be a factory, but now it_______ a shopping centre.

A. used to; is used as B. is used to; used to be

C. used to; used to be D. is used to; is used as

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