题目内容：

I found a little boy crying in the corner可以改成I found .was crying

优质解答

I found a little boy who was crying in the corner

追问：

任何句子都是主谓宾形式的吗 who was crying

追答：

是的，一定要有主语和谓语，这是最基本形式，然后才加各种从句