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题型：单选题 题类：常考题 难易度：容易
仁爱科普版初中英语九年级上册Unit1 Topic 2 The population in developing countries is growing faster. Section A同步练习
—Is that true?He has______told me about it.
-I didn't, __________.
—________. I'm busy preparing for my exams these days.
—Yes. We should wear sweaters to keep warm.
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