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题型：单选题 题类：常考题 难易度：普通
新目标（Go for it）版2017-2018学年七年级英语上册Unit 3 Is this your pencil? 综合能力评估试题（含听力音频）
—Yes, it is. It's .
—No. That one is {#blank#}1{#/blank#}.
—They're ________.
This pen isn't{#blank#}1{#/blank#} . It's{#blank#}2{#/blank#} .
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