阅读下面短文，根据文章的内容选择最佳答案。
    
     
      American kids like to do volunteer (志愿的) jobs during the holidays. This summer, 86 children
 worked at a baseball stadium in Michigan, US.
     These children are between 10 and 14. They worked as runners to get food for the people.
     They made a little money by doing this. Sam Walsh is an 11-year-old student. During one game, he
 made $23. He learned to get things right. "Once I didn't get the right food. I got no tip," Walsh said.
     Taylor Winer, 14, became a volunteer five years ago. He learned a lot from the work. "I see what it is
 like to have a job. I learn to get to work on time and wear the right clothes for work," said Winer.
1. American kids like to do _____ jobs during the holidays.
    A. part-time
    B. volunteer
    C. full-time
2. The underlined word in the third paragraph means "_____".
    A. 顶部
    B. 建议
    C. 小费
3. Sam Walsh became a volunteer when he was _____.
    A. 9
    B. 14
    C. 11
4. Taylor Winer learned from this job that _____.
    a. it's not right to be late for work.  b. to dress well for work  c. how to get a job
   d. how to make moneye. what it's like to have a job
    A. a b c
    B. b c d
    C. a b e