pep小学英语语法2

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查看11 | 回复0 | 2009-6-4 22:07:48 | 显示全部楼层 |阅读模式
1.Are they doing their housework?They aren't doing housework.2.Are the students cleaning the classroom? No,they aren't.3.What are you doing in the playground?4.What is Tom doing?
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