第15题: [单项选择]Questions 19 to 22 are based on the conversation you have just heard. A. Many of her books are bestsellers. B. She is a shrewd bookstore owner. C. She is promoting her book in person. D. She is a salesperson at the bookstore. 参考答案:C 答案解析:[听力原文] 19-22 W: Interested in this book This is our bestseller this week. M: Bestseller I am