1 My grandfather
used to work in a metal factory
when he was a child.
2 He used to design games, but he chose another career path
3 Sam used to study Spanish in Madrid but now he works in Barcelona.
4 When I was eight years old I used to run faster than every other kid in my class.
5 They both used to volunteer at a shelter for the homeless.
6 I used to love programming until it became my job.