Решение:
- Did you use to have long hair?
- I used to be slim, but I lost weight.
- Lizzy didn't use to play basketball, but now she plays squash.
- Where did they use to go to school?
- They used to have a car, but now they do.
- There used to be one theatre in my town, but now there are two!
Ответ: 1. Did...use to, 2. used to, 3. didn't use to, 4. did...use to, 5. used to, 6. used to.