单项选择题

Passage One Questions 11 to 14 are based on the following passage:

A．Textbook.
B．Science report.
C．Science fiction.
D．Critical review.
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单项选择题
A．Take their own bags to the grocery store.B．Buy things that are overpackaged.C．Not buy cloth towels.D．Not throw away their cloth napkins.
A．Take their own bags to the grocery store.
B．Buy things that are overpackaged.
C．Not buy cloth towels.
D．Not throw away their cloth napkins.
填空题
concerning→concerned。
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