单项选择题

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

A．The man regrets having taken up much of the professor’s time.
B．The man has trouble getting along with the professor.
C．The man knows the professor has been busy.
D．The man knows the professor has run into trouble.

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单项选择题

A．Bookstores are keeping their promises.B．Diet books are not always effective.C．Diet books are usually helpful.D．There are lots of ways of losing weight.

A．Bookstores are keeping their promises.
B．Diet books are not always effective.
C．Diet books are usually helpful.
D．There are lots of ways of losing weight.

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

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