听力原文： I have been an airline stewardess for six years. I'm twenty-six years old and recently got married. The majority of the airline stewardesses are from small towns. I myself am from Nebraska. It's supposed to be one of the nicest professions for a woman -- if she can't be a model or in the movies. You can fly around the world, meeting all those people. It is pretty nice doing so. I have five older sisters and they were all married before they were twenty. The minute they got out of high school, they would end up getting married, that was the thing everybody did. It was to get married. They were so happy that one of the girls could go out and see the world and spend some time being single. I didn't get married until I was almost twenty-five. My mother especially thought it was great that I had the chance to travel around the world. How old was the narrator when he became a stewardess(空姐)?