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题型：单选题 题类：常考题 难易度：普通
广东版(先锋、开心)开心学英语五年级下册Unit 4 Going Outing第1课时习题
These {#blank#}1{#/blank#} are {#blank#}2{#/blank#} big.
—Because I want strong and healthy teeth.
—It's 10.
—Because I felt tried.
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