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题型：补全对话 题类：常考题 难易度：普通
外研版（一起点）小学英语四年级上册Module 2单元测试卷
B: Yes, it.
—There is one.
—I have got a book about China, but I haven't got a book about the US.
— They are {#blank#}1{#/blank#} their {#blank#}2{#/blank#} happily.
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