`I`
`1`. She doesn't sleep late at the weekends.
`12`. We don't believe the Prime Minister.
`13`. Do you unterstand the question?
`14`. They don't work late on Fridays.
`15`. Does David want some coffee?
`16`. She has three daughters.
`17`. When does she go to her Chinese class?
`18`. Why do I have to clean up?
`19`. How often does she go to the cinema?
`20`. She doesn't usually go to the church.
Cấu trúc hiện tại đơn:
(+) S + V(s/es)
(-) S = do/does + not + Vinf
(?) Do/does + S + Vinf ?
- Từ để hỏi + do/does + S + Vinf ?