问题 更新时间2023/4/3 12:59:00 29. There is no light in the dormitory. They must have gone to the lecture, _____?(本题1.0分) A、 didn.t they B、 don.t they C、 mustn.t they D、 haven.t they 答案 登录 注册 标准答案:D 出自:青书学堂 >> 陇东学院-大学英语2(专升本)