问题描述：
1.Look at the girl in the red skirt.___is my new classmate.
2.he's my brother,paul.对划线部分my brother,paul.提问
3.they are my brother 对my brother划线部分提问
4.these are my friends 改为单数句
2.he's my brother,paul.对划线部分my brother,paul.提问
3.they are my brother 对my brother划线部分提问
4.these are my friends 改为单数句
问题解答：
我来补答展开全文阅读