lesson 16 how do you go to school
2019-05-13 0评论
lesson 15 where do you live
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lesson 13 how old are you
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lesson 14 are you short or tall
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lesson 11 how's the weather today
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special friends
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纸
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lesson 10 rain and sun
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outside my window
2019-03-17 0评论
地球的清洁工
2019-03-17 0评论