I'm writing a letter to my mother.变成一般疑问句,my必须变成your吗

I'm writing a letter to my mother.变成一般疑问句,my必须变成your吗 I'm writing a letter to my mother.怎样变成疑问句 I'm writing to my mother(改为一般疑问句） I'm going to make a birthday present for my mom.(变成一般疑问句） 小学英语一般疑问句中my都要改成your吗?如：She is my mother.怎样变成一般疑问句 I'm writing to my parents.(改为一般疑问句) 1.i'm writing a letter to my penpal. I'm writing to my mother I’m (writing to my mother). I am writing a letter to my pen pai now.(改为一般疑问句,并作否定回答.) I want to but a T-shirt for my brother变成一般疑问句 This woman is my mother变成一般疑问句