C． hobby                      D． tradition      

       48 A. that                            B. with   

                  C ．when                       D． for                 

      49． A. redden                        B． blacken   

                 C． lower                       D． raise        

      50．  A． therefore                  B. moreover   

                 C． however                   D． rather  

      51．  A. later                             B. end   

                 C． 1ate                         D． ending 

         52．A. yet                              B. still   

                 C． always                      D． not               

      53       A. accepted                       B． received