第23题: [单项选择]What shall we do according to the conversation A. Put our three-year-olds together in day-care centers. B. Put our 13-year-olds in schools and sports activities. C. Put our 80-year-olds in senior-citizen homes. D. Mix people of all ages together. 参考答案:D 答案解析:[听力原文]8-10
F: Tom, do you think that it is right for us to group people by age I mean we put our