dialogue: W: Peter, where have you been? M: I've been play Pac Man in the student union. W: Oh, you're wasting your time on computer games again! M: Not really, Mary. I've been busy this week and I need a break. W: Why don't you buy a computer and some of those games? Then you can play at home. Home computers are getting cheaper. M: How do you know that? W: I've been thinking of buying a home computer too.
question: What has Peter been doing?
choice: Studying in the student union. Mending a computer. Playing computer games.
answer: Playing computer games.