They do there home work after school(when my little sister has a glass of milk for supper(does) she watchs tv in the evening

  They do their home work after school.
   When do they do their home work?

My little sister has a glass of milk for supper.
Does my little sister has a glass of milk for supper?

She watches TV in the evening
Who watches TV in the evening?
Does she watch TV in the evening?
When does she watch TV?
What does she do in the evening?
She watches TV in the evening, doesn't she?
Does she watch TV or reads in the evening?