The answers are "early, and tomorrow." Adverbs are words that makes the sentence understandable or able to be modified. Modification could include the verb, the adjective, could even be a another adverb, etc... anything that would be able to make the sentence better.
Hope this helps!
 
        
                    
             
        
        
        
Plot ? I believe . you can use a plot line to help you throughout the story