I am not very sure but I would probably use on the other hand or therefore.
The genre that uses dramatic elements to depict flaws in human nature in a succinct poignant way is Tragedy
Tragedy usually focus in the suffering and distress of human nature during some specific circumstances
hope this helps<span />
Answer:
1. P Throwing papers along the streets
2. DC While debris covered the park
3.P With the broken glass in the alley
4. P Beside old trucks and cars
5. IC No one lives there
6. P For lights on every corner
7. DC If the expense is too great
8. DC As he walked home
9. DC Dragged up the subway steps
10. IC Thousands of people walk every day
11. DC Racing against the traffic signal
12. DC Unless it rains
13. DC When a helicopter hovers overhead
14. DC Who plays basketball in the empty lot
15. DC That lives in town
Explanation:
A. seems to be the correct answer