1. Tom,WHO was a manager, now IS homeless.
2. I wish I hadn't gone to the party yesterday.
3. If I were you, I would read more.
4. While my sister WAS playING computer games, I WAS helpING my parents.
5. You mustn't do your homework today. You WON`T go to school tomorrow.
6. We arrived at the station after the train had left.