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 vain B、 in advance C、 in case D、 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1