Đổi sang câu phủ định và nghi vấn :
I do the housework everday
(-) I don't do the housework everyday
(?) Do you do the housework everyday?
We have english on monday
(-) We don't have English on Monday
(?) Do you have English on Monday?
My school has 600 students
(-) My school doesn't have 600 students
(?) Does your school have 600 students?
We are in class
(-) We aren't in class
(?) Are you in class?
He lives in the city
(-) He doesn't live in the city
(?) Does he live in the city?