单项选择题

Questions 22-25 are based on a conversation you are going to hear. What’s David’s problem

A．He can’t find his office key.
B．He has misplaced some exams.
C．He is unable to talk.
D．He doesn’t like his classroom.

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单项选择题

Questions 22-25 are based on a conversation you are going to hear. What’s David’s problem 您的浏览器不支持 audio 元素。