Ex. 3:
1. Barbara used to stay with an Italian family when she was in Italy.
2. I used to mind to travel by train.
3. Mr. Michel didn't use to grow tulips.
4. I didn't use to listen to classical music when I was young.
5. He used to love me.
6. I used to eat meals.
7. Lan often cried a lot when she was small.
8. David no longer has long hair.
9. Her mother never used to get up early.
10. He didn't use to eat lots of ham.
Ex. 4:
1. use to
2. used to
3. used to
4. used to/be used to
5. be used to
6. used to
7. wasn't used to
8. used to
9. used to
10. used to
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