王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 The flight was supposed to take off at ten o’clock, but ________ we had to wait until eleven o’clock.A、 in vainB、 in advanceC、 in caseD、 in effect 答案 登录 注册 正确答案为:D 出自:石家庄铁道大学 >> 石家庄铁道大学-大学英语二 石家庄铁道大学继续教育学院