It should never be in the body paragraph or anywhere else. It should only be in the introductory paragraph.
Hope that helped.
난 네가 필요해
nan nega pil-yohae
Hey there!
I don't think we should be writing your essay but I can prove you with websites on this topic with reliable information! I have done this topic before and it's quite simple!
Website One: https://www.fhwa.dot.gov/policy/2002cpr/pdf/ch14.pdf
Website Two: https://www.jjslist.com/blog/importance-of-public-transportation
I hope this helps you out!
Have a great day.
-AshNope