For me,working out that problem is difficult.同义句
问题描述：
For me,working out that problem is difficult.同义句
还有
That women calls her little dog Niuniu.
Why not answer my quertion?
都是改同义句的哦
答
It's difficult for me to work out that problem.
The little dog was called Niuniu by that women.
Why don't answer my question?
you可以省略的