单项选择题

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

A．Take their bags to the grocery store.
B．Buy things that are over-packaged.
C．Not buy cloth towels.
D．Not throw away their cloth towel.

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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。