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最佳答案：哦
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最佳答案：第一句用while,因为两个动作都是持续性的：My mother was watching TV while I was doing my homework.第
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最佳答案：1.Tony is buying some fruit.2.Lucy and Lily are doing their homework.3.I'm singi
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最佳答案：为你解答.1、我们正在做作业.肯定句：We are doing our homework.否定句：We aren't doing our homework.一般
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最佳答案：1、现在我正在打扫房间.Now I'm cleaning the room.2、你父亲在干什么?他正在看电视.What is your father doing
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最佳答案：① I intend to give the kids the four ice cream.② I am hot,I am going to coat off
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最佳答案：On Saturday,when I was playing basketball,my mother told me that I should do me
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最佳答案：Has their grandma retired?I can swallow an egg in one gulpSo can I and Tom.When
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最佳答案：1 He often walks to school2 He often goes to bed 10:003 Sometimes I get up at 5:
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最佳答案：I have a happy family with three persons,my father,my mother and I.I am doing ex