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题型：单选题 题类：常考题 难易度：容易
新目标英语2017-2018学年八年级上册Unit 9同步评估（音频暂未更新）
—I have won the first prize in the speaking competition.
—It is very _______ for kids to stay in a small room for too long.
—And the two cars can't pass at the same time.
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