单项选择题

Passage One Questions 11 to 13 are based on the passage you have just heard.

A．How to give tips.
B．How to give tips in a restaurant.
C．How to give tips in a hotel.
D．How to give tips itl a taxi.

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单项选择题

单项选择题

Passage One Questions 11 to 13 are based on the passage you have just heard. 您的浏览器不支持 audio 元素。