Bird is sing
The sun rose.太阳升起来了。Little Bird can sing in the tree.小鸟在树上唱歌。
一只鸟在唱歌 A bird is singing.那只鸟在唱歌 The bird is singing. 多只鸟在唱歌 Birds are singing.
The sun rose,ahd birds are singing.
sang danced the duck danced(the duck was dancing) the birds sang(the birds were singing)
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