Answer:
The class had studied the planets before the solar system
Explanation:
 
        
             
        
        
        
The poem "The Unicorn" is a ballad.
Hope this helped
        
                    
             
        
        
        
The sentence contains a dangling modifier.
As it is written the modifier "considering the candidates" seems to be describing "one." However, one is not doing the considering; instead, "one" is a candidate. 
A better revision might be "Considering the candidates, I feel one stands out as the best choice." In this way, the person doing the considering is made clear.
        
             
        
        
        
An example is the manipulation to kill and perform dark actions.