Complete the text with expressions to predict the future.
  1. 
  In the future, we 
 use flying cars so there 
 be any pollution in the cities. Londoners 
 use their cars downtown but they 
 breathe better. They 
 even be healthier! Every human 
 play his / her part because our planet 
 resist.
  
  
  
  
  
  
    
      -  Will be able to → future possibility
- Will have to → future obligation
- Not sure? May + BV = 50 % / might + BV = 25 %