One day, a young man asked Albert Einstein, the great German scientist, which the secret of success was. The scientist  41_  him that the secret of success is hard work. A few days 42____  the young man asked him the   43  question again. Einstein was very   44  . He did not say   45  , but wrote a few  46  on a piece of paper and handed it to the young man. The young man looked   47  the piece of paper. On it was written: A=X+Y+Z.“What   48  this mean?”asked the young man.“A means success,”  said the old scientist.“X means hard work, Y means good methods, and Z means   49  talking and start to   50  .
A. told                B. said             C. talked      
A. ago       B. before     C. later
A. easy       B. good       C. same
A. worried     B. happy      C. angry           
A. anything    B. something    C. nothing        
A. words      B.  sentence    C. word   
A. on       B. up               C. down           
A. will     B. shall               C. does           
A. go on    B. stop                  C. enjoy             
A. work   B. read                   C. write