单项选择题

Questions 15-18 are based on the following conversation. You now have 20 seconds to read the questions 15-18. Where does this conversation take place

A．In Detroit.
B．At the railroad station.
C．At the bus station.
D．At Cleveland airport.

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单项选择题

单项选择题

Questions 15-18 are based on the following conversation. You now have 20 seconds to read the questions 15-18. Where does this conversation take place 您的浏览器不支持 audio 元素。