单项选择题

Questions 19 to 21 are bused on the conversation you have just heard.

A．It is used too much.
B．It is more necessary than E-mail.
C．It is very convenient.
D．It has more problems than benefits.

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单项选择题A．Make some copies for her.B．Buy copy paper for her.C．Show her how to use the copy machine.D．Show her where the stationery store is.

单项选择题A．Enrolling in a business class.B．Airline reservations.C．Concert tickets.D．An important meeting.

Questions 19 to 21 are bused on the conversation you have just heard. 您的浏览器不支持 audio 元素。