单项选择题

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

A．Annoying and dislikable.
B．Annoying but common.
C．Common and acceptable.
D．Impolite but common.

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问答题

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