Пожалуйста Помогите !!!!!!!!!!!!!!!!!! срочно надо

1. When i was going to school, i met my friend.
2. When he came home, my little sister was sleeping.
3. When i saw my friends, they were playing football.
4. She was doing her homework from 5 till 8 o'clock yesterday.
5. While Tom was reading, his mother was cooking yesterday.
(100% правильно)