单项选择题

Questions 14～17 are based on the following dialogue. How will Ann probably spend the summer

A．Collecting information about the bacteria.
B．Working on a cattle ranch.
C．Writing a paper about extinct animals.
D．Analyzing buffalo behavior.

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单项选择题

单项选择题

Questions 14～17 are based on the following dialogue. How will Ann probably spend the summer 您的浏览器不支持 audio 元素。