CẤU TRÚC: BE USED TO V: Đã từng làm việc gì trong quá khứ, bây giờ không
1. I didn't use to collect stamps when I was in primary school.
2. Linda used to live with her parents.
3. They didn't use to go to the cinema last year.
4. We used to play soccer.
5. He used to be a doctor in that hospital.