单项选择题

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

A．Doctor and patient.
B．Passenger and bus driver.
C．Teacher and student.
D．Customer and merchant.

<上一题目录下一题>

热门试题

单项选择题

填空题

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