阅读下面的短文，掌握其大意，然后从短文后各题所给的A、B、C三个选项中，选出可以填入空白处的最佳选项。
Kevin White is an 8-year-old boy from Salt Lake City. He started school two years ago but he has ____21____ been able to ride the school bus with the other kids. Because of a serious illness, he needs ____22____ care even on the way to school. His parents drive him to ____23____ each day.
When he heard that a service dog could allow him to ride the bus, he ____24____ to get one at once. However, his family didn’t have that much ____25____. So Kevin came up with an idea to raise money by selling ____26____.
After Kevin told his father what he ____27____, his father helped him grow vegetables in their yard. To let people know about Kevin’s ____28____ on September 26, Kevin’s dad wrote ____29____ article online, telling people what happened to Kevin and _____30_____ he wanted to do. The story touched many people’s hearts _____31_____ they wanted to lend Kevin a hand. In just a few weeks, Kevin’s vegetables were _____32_____. People even began giving _____33_____ own vegetables to Kevin to sell.
With the help of others, Kevin has _____34_____ over 21,000 dollars in all. Kevin said he would use the money to buy service dog and give the money left _____35_____ other children in need.
21. A. always B. often C. never
22. A. special B. strange C. usual
23. A. work B. school C. home
24. A. wanted B. went C. refused
25. A. food B. time C. money
26. A. fruit B. vegetables C. flowers
27. A. heard B. said C. thought
28. A. life B. story C. problem
29. A. a B. an C. the
30. A. what B. which C. that
31. A. and B. but C. or
32. A. put out B. given out C. sold out
33. A. our B. your C. their
34. A. sent B. raised C. donated
35. A. to B. for C. from
这篇短文讲述的是8岁的男孩Kevin患有重病，他不能独自坐校车上学。服务犬可以帮助Kevin坐校车上学，但需要很多钱买到，于是Kevin就想通过卖菜筹集钱。当人们听说了Kevin的故事之后，他们都给Kevin伸出了援助之手，Kevin很快就把钱筹集够了。