完形填空。 One day, a young man asked Albert Einstein, 1 great German scientist, 2 the secret (秘密) of success (成功) was.The scientist 3 him that the secret of success is hard work. A few days 4 the young man asked him the 5 question again. Einstein was very 6 . He did not say 7 , but wrote a few 8 on a piece of paper and 9 it to the young man. The young man looked 10 the piece of paper. On it was 11 : A=X+Y+Z.' What 13 this mean?' asked the young man.'A means success,' 14 the old scientist.'X means hard work, Y means good methods (方法), and Z…Z mean 59 talking and start to 15 .' (     )1. A. a (     )2. A. who (     )3. A. told (     )4. A. ago (     )5. A. easy (     )6. A. worried (     )7. A. anything (     )8. A. words (     )9. A. to hand (     )10. A. on (     )11. A. answered (     )12. A  will (     )13. A. said (     )14. A. go on (     )15. A. do B. the B. whether B. said B. before B. good B. happy B. something B. word B. hand B. up B. written B. shall B. thought B. stop B. read C. one C. what C. talked C. earlier C. different C. angry C. nothing C. sentences C. handed C. down C. read C. does C. believed C. enjoy C. write D. some D. which D. spoke D. later D. same D. disappointed (失望) D. everything D. sentence D. handing D. at D. found D. did D. told D. try D. work