1- Has her aunt got a son?
--Yes, she has
2.-Are his sons at home? -No, they're not.
3.- Have you got a brother? - Yes, I have/No, I haven't
4.-Are you an engineer? Yes, I'm./ No, I'm not
5.-Have you a pupil? Yes, I have/No, I haven't
6.-Do you play the guitar? Yes, I do./No, I don't
7.-Do you like to roller skate?
Yes I do/No I don't