第25题: [单项选择]Questions 23 to 25 are based on the conversation you have just heard.A. Helping students with their homework. B. Planning some recreational activities. C. Looking after children at lunch time. D. Working with a youth organization. 参考答案:C 答案解析:[解析] 23-25 M: When did you start doing volunteer work W: When I was in high school, I guess.