第28题: [单项选择]If you have 20 pages to be typed, how long does it take to get them finished A. More than 48 hours B. More than 24 hours. C. Within 24 hours. D. In 24 minutes. 参考答案:C 答案解析:[注释] 根据广告上的承诺:Twenty-four-hour service for fifty pages or less.20页的材料应该在24小时内打印完成。