He has to write a letter to his mother如何用被动语态的形式更改
问题描述：
He has to write a letter to his mother如何用被动语态的形式更改
请问这两句He has to write a letter to his mother和Mum makes me do homeworak every day如何用被动语态表达
答
A letter has to be written by him to his mother.
I was made to do homework everyday by mum.