They must have known each other for a long time, __________? A.have they B.aren’t they C.don’t they ...
2022-09-17 22:15:42 182次 牛津上海版英语九年级第一学期期中冲刺满分卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
They must have known each other for a long time, __________?
A.have they B.aren’t they C.don’t they D.haven’t they
本题链接：
