there are twelve birds singing in the tree.twelve划线,如何提问

" How many birds are there in the tree?"
树上有几只鸟?
【公益慈善翻译团】真诚为你解答!singing呢？How many birds are there singing in the tree?树上有几只鸟儿在唱歌呢？singing 在句子中做伴随状语。