Answer:
veterinarians are the only doctors educated to protect the health of both animals and people. They work hard to help animals that are hurt and take them into their care so that they get better quicker. I hope this helps you!
 
        
                    
             
        
        
        
Answer:
theater
Explanation:
The best answer for the question is the theater. The motion pictures offered an escape from the drudgery of everyday life in the 1930s, and the theater suffered at the hand of the new technology.
 
        
                    
             
        
        
        
If you don't have answer choices, I would say either peer editing or reading it aloud and listening for errors.
 
        
             
        
        
        
Let's reconstruct this sentence. 
"Everyone I know complain" doesn't make much sense. 
Popping an "s" on the end of "complain" might do the trick, lets try!
"Everyone I know complains" ah, there we go. Much smoother.
Next section!
"Complains because these days backpacks weigh a ton."
Though this may sound correct, it is still quite a bunch. Let's fix that.
Rearranging your words might work.
Maybe in the section that says "Complains because these days" we can change that to "Complains these days because" Much smoother, and easier to read. 
We have so far is:  "Everyone I know complains these days because" 
Yay, let's continue.
The remaining of the sentence is fine so we can put it on the end of our freshly constructed sentence.
Our final sentence should be:
"Everyone I know complains these days because backpacks weigh a ton."