Ответ:

1. I used to enjoy dancing, but recently I've done quite a lot and it's fun.
2. He used to live near you? I know that now he's moved to Glasgow.
3. I'm sure our summers used to be much warmer than they are now.
4. This room used to be the kitchen, but Dad's built a new room on the house and we use that as a kitchen now.
5. Kathy used to like Ben, but now they're best friends.