单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．The plane is full.
B．The plane is late.
C．The plane has broken down.
D．The flight is canceled.

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单项选择题

单项选择题

Questions 11 to 18 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。