in·fin·i·tive
noun
the basic form of a verb, without an inflection binding it to a particular subject 
Answer:
1. To wait
2. To win
3. To (be) sure
4. To accept
5. To get
6. To stay
Explanation:
You need to check for the word "to" in order to see if there is an infinitive in the sentence. 
"To"+verb=infinitive
Feel free to ask questions in the comments.
 
        
             
        
        
        
Answer:
The mental health of many students has fallen downhill.
Explanation:
Students haven't been able to be around their peers so, they are lacking the outside connections and interactions they require to stay mentally healthy. Separation from people who support us more than our own family members can be terrible on the mental health of students struggling to question themselves. Meanwhile, students who are less social, spend more time online with friends, and get along with their family easier and get the support they need might not be struggling as much. Mental health is a very situational topic and varies from student to student.
 
        
             
        
        
        
A should be the right answer
        
                    
             
        
        
        
Answer:
In the first two sentences, Sinclair implies that the meat industry is very corrupt. He is preparing to reader for his accusations against the industry
 
        
                    
             
        
        
        
Ok, and is there a question??