David wanted to be an airplane pilot one day. He loved everything about 1 .
David was so interested in his air projects that he didn't remember the time. Sometimes he even 2 to do his homework. Once, he was late in preparing his part of a group report. As a result, all the three students in his group got low(低的) grades. "I'm sorry, 3 look at this fantastic model plane!"
One day at school, David spent his lunch time under a tree drawing a picture of his new spaceship design. He heard the bell at the end of the lunch, but could not make 4 leave. Surely Mrs. Carl would understand 5 he was late when she saw his wonderful idea, he thought.
An hour later, David walked back to his classroom. "Where were you, David? I sent many people to look 6 you." Mrs. Carl said.
"I'm sorry, but I just had to finish this spaceship design." said David as he tried to show Mrs. Carl his 7 .
"But we had a special speaker this afternoon, an airplane pilot who talked about his job. He just finished his speech(演讲) and left."
David's smile fell, along with his 8 . "I forgot! How could I miss him? I can't believe I missed the 9 part of school for the whole year."
After this, David learned a lesson. He 10 not only look at the sky, but also come back to earth.
