王老师:19139051760(拨打)复制微信 题目 更新时间:2025/10/11 They had talked for a few minutes _____ they found they were of different opinions.A、unlessB、whileC、beforeD、once 答案 登录 注册 C 出自:江开 >> 大学英语(C)252 上海电力大学继续教育学院