阅读下面短文,掌握其大意,然后从每题所给的A、B、C、D四个选项中选出最佳选项。
At the age of 16, Einstein always played with a group of naughty kids.1he was so busy playing, he didn't study enough and failed his final exam.
One morning, when Einstein was2a fishing rod and was about to go fishing with his friends, his father stopped him and said3, "Einstein, you're so fond of4all day that you failed your exam. I'm worried about your future."
"What are you worrying about? Jack and Robert also failed, but they could5go fishing." "My boy, you can't think6that." his father said, "There is a story that people tell in our hometown. Listen to it now."
"There were7cats playing on a roof. But unluckily, one cat was careless and8the chimney (烟囱) while holding the other cat. When the two cats tried their best to climb out of the9, one cat had soot(烟灰) on the face, while the other cat's face was clean. Seeing the soot-faced cat, the clean cat thought its face10be dirty, so it ran to the riverside and washed its face. The soot-faced cat saw the clean-faced cat and thought its face was also11, so it just walked down the street as usual. People all laughed at this cat."
"Einstein, no one can be your 'mirror'. Don't blindly12others. You have to think for yourself. If you take your cues from others, you will never learn."
Hearing this, Einstein thought for a while and then13down his fishing rod and returned to his room. He decided to pay more attention to his14and less attention to what his friends were doing. This allowed 15 to be successful.