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题型：单选题 题类：常考题 难易度：普通
牛津上海版（试用本）2018-2019学年小学英语二年级下册期末测试C卷
They {#blank#}1{#/blank#} （were/weren't）dirty then.
They {#blank#}2{#/blank#} （are/aren't）clean now.
— ____ Let's go boating.
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