I believe that there are three prepositional phrases but if you would like to do it yourself instead of taking my word for it. a prepositional phrase is a modifying phrase consisting of a preposition and its object.
And a preposition is a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause, as in “the man on the platform,” “she arrived after dinner,” “what did you do it for ?”<span />
        
             
        
        
        
Answer:
D.) 1793
Explanation:
The worst of the yellow fever epidemic that was mentioned in The American Plague had the most negative effects in 1793. It is told in the story this was when several people were dying and the deaths and burials were increasing in number. 
I hope this helped!!
~Penny
 
        
             
        
        
        
Active and passive are the two types of voices
        
             
        
        
        
Answer:
<u>need</u><u> </u><u>to</u><u> </u><u>make</u><u> </u><u>sure</u><u> </u><u>he</u><u> </u><u>correct</u><u> </u><u>all</u><u> </u><u>errors</u><u> </u><u>and</u><u> </u><u>make</u><u> sure</u><u> he</u><u> has</u><u> the</u><u> </u><u>right</u><u> </u><u>information</u><u>.</u>
 
        
                    
             
        
        
        
Answer:
1 he is sad
2 you are pilots. you fly aeroplans