40. The gift of money to the school suggests that Johnson (   ). 

• A、had no children
  
  

• B、was a strange man
  
  

• C、was very fond of children
  
  

• D、wanted people to know how rich he was
  
  

36. What does the passage mainly talk about?

• A、Language acquisition in children. 
  
  

• B、Teaching languages to children. 
  
  

• C、How to memorize words.
  
  

• D、How to communicate with infants. 
  
  

54. (     )