1. (-) Her friend didn't give her a lift home yesterday.
(?) Did her friend give her a lift home yesterday?
2. (-) The film didn't start at five.
(?) Did the film start at five?
3. (-) The train didn't leave ten minutes ago.
(?) Did the train leave ten minutes ago?
4.(-)They were not late for the plane.
Were they late for the plane?
5. He didn't arrive in London last Saturday.
Did he arrive in London last Saturday?
6. She didn't go skating two hours ago.
Did she go skating two hours ago?