Giúp mình vớiiii ạaaaa

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1. I used to have a lot of money, but I lost it all when my business failed. 
2. I didn't use to keen on classical music when I was younger. 
3. Dennis used to smoke three years ago. 
6. My parents used to live in the USA when they were young. 
7. Jim used to be my best friend.
8. My uncle used to be a national swimming champion when he was younger. 
9. I used to eat ice cream when I was a child.
10. Barbara used to stay with an Italian family when she was in Italy. 
11. I didn't use to drink coffee when I was younger. 
12. I used to go to the church when I was younger. 
13. Michael used to grow tulips.
14. I didn't use to listen to classical music when I was young. 
15. I used to play football with my friends when I was a student.