单项选择题

Questions 23 to 25 are based on the conversation you have just heard.

A．Because they are not friends.
B．Because he failed last exam.
C．Because they are not in the same class.
D．Because she has never told him about that.

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单项选择题

Questions 23 to 25 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。