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Ответ:

1. I used to do voluntary work when I had more free time

2. she used to feel angry a lot of the time, but she's a lot happier today

3. did you use to have many arguments with your brothers and sisters?

4. we didn't use to see eye to eye on many things, but we get on a lot better now

5. did you use to hang out with your friends every day after school?