What he suspects about a person who drives a yellow car, is that perhaps the driver is the murderer of his wife, since she was killed by a person driving a yellow car, and is the car that Tom was driving.
 
        
             
        
        
        
A run-on sentence usually occurs when two separate sentences or clauses are improperly combined. However, unlike sentence fragments, run-on sentences can still be technically grammatically correct. So technically the are bad.
        
             
        
        
        
Answer:
Acquiring a job in the postal service may be difficult in the future
Explanation:
It is Acquiring a job in the postal service may be difficult in the future because postal carriers, postal service mail sorters, proccesors, and processing machine operators both have a loss. Carriers are loosing about 26,000 and carriers, sorters, and operators are loosing about 30,000 people. Loosing that many people will lead to it being less likely to work at a post office.  
 
        
                    
             
        
        
        
The correct answer should be "it forces the reader to pause, emphasizing the calm of the snow." because the tone of the poem is peaceful and content, not choppy and nervous