Question: Have you ever watched a sports game in a stadium?
You can answer yes or no, and if yes, mention which sports game you watched and what the experience was like. If no, you can say why you haven't had the chance yet or if you would like to in the future.
Try these synonyms instead of repeating the question:
watched→seen; attended; witnessed
sports game→match; sporting event; competition
stadium→arena; sports ground