单项选择题

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

A．Less than two years.
B．More than a year.
C．Less than a year.
D．More than two years.

<上一题目录下一题>

热门试题

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。