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Unit 1 September 10th is Teachers' day.
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Unit 2 October 1st Is Our National Day
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Unit 3 I was born on May 23rd.
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Unit 4 Revision
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Unit 5 It's a nice autumn day.
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Unit 6 I have fifty markers.
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Unit 7 When is Thanksgiving?
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Unit 8 Revision
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共8个课程
,18个课时
套餐价：￥29.00
