5. be
6. Did she use to
7. working
8. didn't use to
EX5: Complete the sentences with used to and the correct forms of the verbs:
1. didn't use to
2. didn't use to
3. used to be / is
4. used to / eats
5. didn't use to / cooks
6. didn't use to have / uses
7. used to / want
8. used to travel