Is that your pencil sharpener.做否定回答

Is that your pencil sharpener.做否定回答 is that your pencil?的否定回答 are the pens (in your pencil box)? 做否定回答 that is a radio. (用 Is that her pencil case?（做否定回答） Is that your pencil case?做肯定回答 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 here is your pencil sharpener.( ) ( ),jane. is that your pencil sharpener?Yes,t___you.横线上应填什么单词 It is my pencil sharpener.变为否定句_____________________________ is that your teacher 做否定句回答