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题型：单选题 题类：常考题 难易度：普通
湘少版2018-2019学年小学英语六年级下册Unit 4同步练习（音频暂未更新）
—Because trees are good for us.
— A dentist.
— In the library.
—I'm eight.
—It's two meters tall.
—It's nine yuan.
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