第17题: [单项选择]{{B}} Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. About the children’s action. B. About social manners. C. About public influence. D. About the changes of the environment. 参考答案:B 答案解析:[听力原文]
W: Things aren’t what they used to be, are they
M: No, they aren’t. Everything is upside d