is this your father的否定回答

is this your father的否定回答 Is this your father?的回答 is this your father?否定回答 that is his sister?复数句 Is this your father?肯定回答是什么 Is this your mother 的否定回答是什么 Is this your sister?否定回答 Is this your brother?(做否定回答) Is this your teacher ?回答,否定句 Is this your friend?做否定回答 .Is this girl your friend?(否定回答) Is this Mary's father 改为否定回答 is your father a teacher?作否定回答