听下面的材料,回答第1-4题。 1. What did the speaker want to be when he was in middle school? A. A teacher. B. A pilot. C. A tour guide. 2. Why did the man give up studying physics? A. He didn’t like physics at all. B.He had to work to support himself. C. His eyesight was too poor. 3. Where did the speaker work for a travel agency? A. In South Africa. B. In Japan. C. In Spain. 4. Why did the speaker start to teach English part-time? A. To earn more money. B. To kill time. C. To take over the school