第13题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. 20 laps. B. 15 laps. C. 37 laps. D. 32 laps. 参考答案:B 答案解析:[听力原文]
W: Hey, Charles. You’re so early today. When did you start running
M: I got here at 6:20 a