1 you didn't see a horse last week
2 you have never seen a horse
3 he has not say that yet
4 he said that a minute ago
5 they haven't had breakfast yet
6 they didn't have breakfast an hour ago
Did she just say that?
Did she say that a minute ago?
Did you draw a picture at the last lesson?
Have you ever drawn a picture before?
Have they had breakfast yet?
Did they have breakfast an hour ago?