第11题: [单项选择]The government had to ______ all his appointments for the day and rushed to the train accident. A. set off B. see off C. call off D. pay off 参考答案:C 答案解析:短语辨析题。set off意为“开始,出发”;see sb. off意为“为某人送行”;call off意为“取消”;pay off意为“偿还,还清……债”。本句大意为:政府不得不取消那天的所有的预约