单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A．It hasn’t been bought by the librarian.
B．It has been taken by a student.
C．It has been lent out.
D．It has been placed on reserve.

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单项选择题

单项选择题

Questions 19 to 22 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。