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题型：单选题 题类：常考题 难易度：普通
科普版小学英语五年级下册Lesson 3同步练习
—{#blank#}1{#/blank#}is my bag?
—It's {#blank#}2{#/blank#}the chair.
—I will tidy them up, Mum.
— He's my uncle's son. He is my {#blank#}2{#/blank#}.
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