Giúp mình với các bạn

`text(1. My father used to give up smoking three years ago)`

`text(2. We often used to go to school by bike when we were young)`

`text(3. Linda used to be my best friend, but we aren't friend any longer)`

`text(4. He used to go to church when he was a child)`

`text(5. I didn't use to like rock music when I was young)`

`text(@NoCopy!)`