第21题: [单项选择]Questions 19 to 22 are based on the conversation you have just heard. A. To ask permission to go to America. B. To confirm his business trip schedule. C. To ask how to draft a schedule. D. To consult her business trip. 参考答案:B 答案解析:[听力原文] 19-22 W: Good afternoon, Mr. Peterson. (19) I’ve drafted a schedule for your business trip