48. Some kids gain in reading over the summer probably because they ______.

• A、join in a variety of activities 
  
  

• B、go lo the library every day
  
  

• C、spend their vacation in a school
  
  

• D、receive a special training in reading
  
  

42. The phone case is shaped like a gun so that users can______.

• A、help improve the website
  
  

• B、play games of shooting
  
  

• C、hide their phones safely
  
  

• D、actually shoot someone
  
  

 55.