Is that your backpack?(做否定回答)
Is that your backpack?(做否定回答)
Is that your backpack?(做否定回答) No,it isn't 解析:
Is that a backpack?(做出否定回答)
is that your friend 改为复数句 is this his backpack作否定回答
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
Is it in the backpack?做否定回答
The red jacket is in the backpack(改为一般疑问,并做否定回答)
is that your teacher 做否定句回答
Is that your ID card?做否定回答
Is that your pencil sharpener.做否定回答