15. When Jack heard the news, he couldn't help______.

• A、 having cried
  
  

• B、cry
  
  

• C、to cry
  
  

• D、crying
  
  

39. What can parents do to show that their home education is suitable?

• A、Provide reports and some of their child's work.
  
  

• B、Become a school teacher in home education.
  
  

• C、Have a local government officer meet their child alone.
  
  

• D、Meet a central government officer.
  
  

 52.