第13题: [单项选择]Why is the speaker calling A. To inform a customer of a sale B. To follow up on a customer order C. To apologize for delivering the wrong product D. To get more information on a customer’s needs 参考答案:B 答案解析:[听力原文] 80-82 Questions 80~82 refer to the following recorded message. 与预订产品无货和替代品介绍有关的语音信息