Answer:
where are you coming from?
hope it helps.
 
        
                    
             
        
        
        
Answer:
had + been +  (verb+ing)
like 
I had been playing football all the day 
Explanation:
 
        
                    
             
        
        
        
Answer:
Symbols are often used to emphasize a important theme in the book. 
Explanation:
In To Kill A Mockingbird, the mockingbird symbolizes that a lot of things that are harmless are killed for no reason.
 
        
             
        
        
        
In the sentence "They say we will not be able to afford to own houses in a few years." there's a <u>pronoun reference</u> error. It is unclear who the pronouns<em> they </em>or <em>we </em>are referring to. 
Pronouns are used to replace nouns, and it is considered to be a pronoun reference error when the reader is unable to deduce from the text the noun being replaced by the pronoun.