is that your teacher 做否定句回答

is that your teacher 做否定句回答 Is this your teacher ?回答,否定句 Is that your ruler?做否定回答. Is that your brother?做否定回答 Is that your room?做否定回答 Is that your ID card?做否定回答 Is that your backpack?(做否定回答） Is that your pencil sharpener.做否定回答 Is that girl your sister?做否定回答 is that a photo of your?做否定回答 is she your cousin?做肯定回答 Is he your math teacher?(否定回答) Is she your grandmother?(做否定句回答）