Steven’s sister’s a nurse.变成一般疑问句

Steven’s sister’s a nurse.变成一般疑问句 LiPing 's mother is a nurse 改为一般疑问句 Helen's mother is a nurse 改为一般疑问句 she,s a student变成一般疑问句 Steven’s favorite subject is Chinese.(改为一般疑问句） Steven’s favorite subject is Chinese.(改为一般疑问句) She’s my sister.改为一般疑问句 She's my father's sister.怎么改成一般疑问句? Mary's mother is (a nurse).特殊疑问句 Steven's favorite subject is Chenese.改为一般疑问句怎么改? What's your sister job She's a nurse.找出错误 What's my sister's job?Is she a nurse?这2句句式对吗.