Celestial - Relating to the sky
Sagacity- The capacity to reason, judge, and act intelligently
Conjecture - To form an opinion without strong evidence
Interpose - To come between two things, to interrupt  
 
        
                    
             
        
        
        
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Crossing- present participle
Crossing the street is dangerous and illegal- phrase? 
 
        
             
        
        
        
Answer:
participle phrase
Explanation:
the participle phrase is burned in burned his arm