题目内容

12、The field research will take Joan and Paul about five months; it will be a long time _____ we meet them again.

A.after        B.before        C.since         D.when

试题答案

12、B

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