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题型：语法填空（单句） 题类：常考题 难易度：普通
北师大版（一起点）小学英语五年级上册Unit 1同步练习（1）
— We to buy some books.
{#blank#}1{#/blank#} my parents {#blank#}2{#/blank#} to the school choir on the Open Day？
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