Because it's features are water maybe if sorry
        
             
        
        
        
Answer:leave the school until the bell rings 
Explanation: simple sensentence
 
        
                    
             
        
        
        
Option B, <em /><span> <em>Cats are normally calm and resigned, W</em>ould be the best for this paragraph because every other line talks about the same species.  it takes an ABAB pattern.  Because the previous sentence was about dogs, this one should be about cats.  The only one meeting the Criteria is B</span>