câu 1
They watch movie every weekend.
They don’t watch movie every weekend.
How often do they watch movie?

câu 2
He drinks tea for breakfast.
He doesn’t drink tea for breakfast.
Does he drink tea for breakfast?

câu 3
I know how to play piano.
I don’t know how to play piano.
Do you know how to play piano?
câu 4
Your exam starts at 09:00.
Your exam doesn’t start at 09:00.
Does your exam start at 09:00?

câu 5:
London is a large city.
London isn’t a large city.
Is London a large city?