单项选择题

Questions 19 to 21 are based on the conversation you have just heard.

A. In a factory.
B. On a cattle farm.
C. In a department store.
D. At a restaurant.

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单项选择题

单项选择题

Questions 19 to 21 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。