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[跟可可练听力] 九年级英语总复习《动词的过去式》
Once upon a time, there was a farmer in the central region of China. He didn't have a lot of money and, instead of a tractor, he used an old horse to plow his field. One afternoon, while workin..2007-04-01 编辑：admin
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[空中美语高级] 九年级英语总复习《一般过去时》
空中美语高级每日在线听[20070601]相关专题:空中美语初级空中美语中级 空中美语中高级2007-06-18 编辑：admin
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[VOA慢速-教育报道] VOA慢速新闻附字幕:语法—简单过去时和现在完成时
In this week's episode of Everyday Grammar we're going to help you understand the difference between the simple past and the present perfect. English learners often confuse these two verb te..2015-05-11 编辑：Sunny
