I. EXAMPLES: Did you use to live in Tokyo? Did you use to get up early? You used to smoke heavily, didn’t you? II. DIALOGUES: A: Did you use to have any really bad habits? B: I used to bite my toenails when I was younger but now I don’t. A: What made you stop? B: One day I bit my toenail too deeply and my toe started bleeding. So I learned my lesson and didn’t bite my toenails again.
