_江西成考网

20. Cathy, along with his teacher, (   ) to Guangzhou on business. 

• A、have gone
  
  

• B、has gone
  
  

• C、are going
  
  

• D、have been gone
  
  

52 .(    ).

44. You shouldn't sit with your back towards the window because (   ). 

• A、the light is too bright
  
  

• B、the light is bad for your eyes
  
  

• C、you are in a dark room
  
  

• D、your book is in your shadow