阅读理解。 'Hey Dad,' one of my kids asked the other day, 'What was your favorite fast food when you were growing up?' 'We didn't have fast food when I was growing up,' I told him. 'All the food was slow.''Where did you eat?''It was a place called 'at home,'' I explained. 'Grandma cooked every day and when Grandpa got home from work, we sat down together at the dining room table, and if I didn't like what she put on my plate I was allowed to sit there until I did like it.' Some parents never owned their houses, set foot on a golf course, travelled out of the country or had a credit card (信用卡). My parents have never drove me to football practice. This was mostly because we never had heard of football. I had a bicycle that weighed probably 50 pounds, and only had one speed. We didn't have a television in our house until I was 11. I was 13 when I tasted my first pizza; it was called 'pizza pie.' When I bit (咬) into it, I burned the roof of my mouth (上颚) and the cheese slid off, swung down, plastered (粘) itself against my chin (下巴) and burned that, too. It's still the best pizza I ever had. I delivered newspapers, six days a week. The paper cost 7 cents, of which I got to keep 2 cents. I had to get up at 4 a. m every morning. On Saturday, I had to collect the 42 cents from my customers. My favorite customers were the ones who gave me 50 cents and told me to keep the change. If you grew up in a generation (一代) before there was fast food, you may want to share some of these memories with your children and grandchildren. Growing up isn't what it used to be, is it? 1. By saying 'All the food was slow', the writer implies (暗示) that ______. A. when he was growing up, he never ate fast food B. he didn't like fast food when he was growing up C. his mother made food slowly D. he had to wait for a long time for the fast food 2. From the writer's childhood life, we know that ______. A. the writer lived a colorful life B. the writer's parents treated him badly C. the writer had to sell pizza to support his family D. life was harder for him than it is for his children 3. The writer's purpose of writing this passage is to ______. A. tell his children there was no fast food in the past B. tell us that life has been changing C. tell us how hard it is to deliver newspapers D. make us understand the meaning of life