放心,肯定全部正确
Does your little sister study in a school?
My little doesn't study in a school.
Does Jane often help you with your English?
Jane doesn't often help me with my English.
Do they speak English after class?
They don't speak English after class.
They aren't my grandparents.
Are they your grandparents?
Is the girl in red your sister?
The girl in red isn't my sister.