Question

My mother is a doctor（改成一般疑问句）

Answer 1

一般疑问句，是指能够用Yes或No直接回答的疑问句。经常用be动词，情态动词，助动词开头。
My mother is a doctor—我妈妈是个医生。
Is your mother a doctor?你妈妈是个医生吗？
祝你开心如意！

Answer 2

Is my mother a doctor？