问题 更新时间2023/4/3 12:59:00 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