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题型：语法填空（单句） 题类： 难易度：普通
外研版（2019）选择性必修 第一册Unit 1 Laugh out loud!分层跟踪检测1
In their efforts to p{#blank#}1{#/blank#} us to buy this or that product, advertisers have made a close study of human nature and have classified all our little weaknesses.
He, {#blank#}1{#/blank#} {#blank#}2{#/blank#}you, is to have a talk with the stranger.
{#blank#}1{#/blank#}the dedicate ecosystem was {#blank#}2{#/blank#} .
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