is the bird singing or sieep?(写出答语）

It is sleeping
It is singing
采纳
再问： the mother elephant is walking with her baby.改为一般疑问句 it's running改为否定句 some birds are flying in the sky对划线部分提问，划线部分：flying 如果你回答我的全部问题，我会采纳并给悬赏
再答： Is the mother elephant walking with her baby? It isn't running What are the birds doing in the sky? 求采纳