2. Many kids are crazy about space. Last month, a space agency (机构) told the public that they were (1) "a planet protection officer." Some people laughed at the funny job title, but a 9-year-old boy took the information (2) . He wrote a letter to the agency, saying that he wanted the job.
"Dear sirs, my name is Sam Lee. I think I am the (3) person for the job," he wrote.
What are Sam's (4) ? For one, he wrote, My sister says I act like an alien (外星人) (5) movies he could find. His last sentence may touch people's hearts: "I am young, so I can learn to think like an alien."
Sam soon got a (6) from Bill Black, director of the agency. "We have received your letter. It is great that you are interested in the job. This job is to (7) the earth from germs (细菌) on things brought back from other planets." Bill ended the letter with some warm words, (8) Sam to study hard and do well in school. "We hope to (9) you at the agency one day." he wrote.
"Among kids, there are (10) space scientists." Bill told a newspaper. "We think of this letter as a chance that may forever change our kids life."