Your mission, should you choose to accept it, is to figure out the next bid for each hand given.
You are always the South player for the purpose of this exercise. East/West Pass throughout.
North
 
South
 
 
1 1
 
1 ?
 
x x    
A K J x x x x    
K x    
x x
 
 
What do you bid now?        
3        
3NT        
3        
4        
4