The woman is sitting on the desk is my mother这句话怎么改急

问题描述:

The woman is sitting on the desk is my mother这句话怎么改

The woman who is sitting on the desk is my mother

The woman sitting on the desk is my mother或者The woman who is sitting on the desk is my mother

The woman sitting on the desk is my mother .

去掉:is?

The woman who is sitting on the desk is my mother