Раскройте скобки и поставьте в Past Simple или Past Continuous

1)Our granny (fall) asleep while she (read) a fairy-tale to us.
2)I (find) my ring when i (water) the flowers in the garden.
3)When father (open) the door she (play) computer games.
4)Elizabeth (wear) a nice dress when i (see) her at the party.
5)Kate (read) a letter when Ann (arrive).

Прошу помогите!!!