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最佳答案：play and sing a song
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最佳答案：e good at singing
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最佳答案：Listen! He is singing.
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最佳答案：翻译：She is singing.
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最佳答案：The bird is singing in the tree.
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最佳答案：i like singing.
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最佳答案：Do you know that someone is singing upstairs?
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最佳答案：Don't sing songs here
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最佳答案：sing songs with friends
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最佳答案：He was singing as he plays the guitar.