单项选择题

Questions 22 to 25 are based on the conversation you have just heard.

A．Because he lost fifty dollars.
B．Because he wasted his time.
C．Because his brain wasn’t very active.
D．Because he watched just one program.

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单项选择题

Questions 22 to 25 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。