题目内容：

One day, a young man asked Albert Einstein, a great 1. (science), what the secret of success was. The scientist told him that the secret of success is hard work. A few days 2. (late), the young man asked him 3. same question again. Einstein was not very 4. (unhappy). He didn’t say anything, 5. wrote a few words 6. a piece of paper and handed  7. to the young man. The young man looked at the paper. On it was 8. (write): A = X + Y + Z. “What does this mean?” asked the young man. “ A means success,” said the scientist. “ and X means hard work, Y means good 9. (method), and Z means 10. (little) talking and more work.”