Решите плиз упр.5 пож. Очень безотлагательно!!!!!!!!!!!

1) I was talking with my friend when the TV show started 2)They were playing football when it began raining 3)Jeff was reading a magazine when the telephone rang 4)Sue was having a cup of tea when the doorbell rang 5)We were walking our dog when it became dark 6) You were having a lunch when the TV show started 7) The children were enjoying the game when it began raining