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
  
  

44. Those who are against the 200 think that people should ______.

• A、 let animals live in the wild
  
  

• B、sell animals in zoos
  
  

• C、use animals for fun
  
  

• D、raise animals at home
  
  

 53.