单项选择题

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

A．About a month.
B．About one week.
C．About three weeks,
D．About two weeks.

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What measures have the officials promised to take to deal with the health problem

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