单项选择题

Passage One Questions 26 to 28 are based on the passage you have just heard.

A．The advantage of refrigeration.
B．Food preservation in the summer.
C．Cooking food in the summer.
D．Fun in the summer.

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After the attacks, the group which is the most anxious to help with the healing process is ______.

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According to Don Floyd, president and CEO of the National 4-H Council, volunteerism has become more important since Sept. 11.

Passage One Questions 26 to 28 are based on the passage you have just heard. 您的浏览器不支持 audio 元素。