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题型：单选题 题类：常考题 难易度：普通
冀教版初中英语九年级上册Unit 1 Lesson 4 Don'tsmoke, please!同步练习
{#blank#}1{#/blank#} {#blank#}2{#/blank#}people leave the countryside to work in the cities every year.
—Yeah, it receives Internet hits a day.
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