单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．Customer and clerk.
B．Professor and student.
C．Boss and employee.
D．Lawyer and client.

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protested

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Mr. Symonds and his associates were ______ with the author’s replies.

Questions 11 to 18 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。