_菏泽成人高考

20. —I usually go to school on foot. 

—Why don't you (   ) by bus for a change?

• A、try to go
  
  

• B、trying to go
  
  

• C、to try to go
  
  

• D、try going
  
  

13. Sarah had her washing machine repaired the day before yesterday, (   ) she?

• A、had
  
  

• B、did
  
  

• C、didn't
  
  

• D、hadn't
  
  

54. (    )