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Questions 8 to 10 are based on the conversation you’ve just heard.

A．Boston.
B．San Francisco.
C．New York.
D．Milwaukee.

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We are all concerned for the (secure) of the passengers on the aircraft.

Conversation 2 Questions 8 to 10 are based on the conversation you’ve just heard. 您的浏览器不支持 audio 元素。