56. It is interested to visit another country.                      

56. It is interested to visit another country.                                                     

57. Learning a foreign language is one of the best way.                                 

58. But sometimes there is some problems.                                  

59. Because of in a strange country we may not know where to eat.                   

60. Why not visiting her this week?                             

61.The teacher told us that light travelled faster than sound.                             

62.She requested him go with her.                         

63. I wonder that they will arrive on time.                                           

64. It is the first time that she had been here.                               

65.We must make use every minute to study.                                 

56. interested--interesting  57.way--ways   58. is--are  

59. of取掉  60. visiting--visit   61.travelled--travels  

62.go前面加to   63.that--whether( if )   

63.64. is--was(或had--has)    65.use 后加of