单项选择题

Questions 14-17 are based on the following passage about loneilness．
Who are the loneliest among these people according to the speaker

A．Children．
B．Young people．
C．The middle-aged．
D．Old people．

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单项选择题

单项选择题

Questions 14-17 are based on the following passage about loneilness． Who are the loneliest among these people according to the speaker 您的浏览器不支持 audio 元素。