第9题: [单项选择]Questions 15~18 are based on the following dialogue.Where is this conversation taking place A. In a classroom. B. In a library. C. At a secondhand bookstore. D. In a museum. 参考答案:C 答案解析:[听力原文]15-18 W: I enjoy going through secondhand bookstores, don’t you It’s interesting to see wh