Bonjour! C'est pour une correction en anglais!

Voilà en faite demain, j'ai un oral et nous devons présenter qqch qu'on aime (min 5minutes)!
Mon texte:

Hi! My name is Sahar, I'm fifteen and today I want to present you my favorite series whose name is Gossip Girl.
Gossip girl is an American drama television series. The series revolves around the lives of socialiste teenagers growing-up on New-York City's Upper East Side. In fact, the story deals with friends, family, jealousy and other issues. The main characters are Serena Van Der Wodsen, Dan Humphrey, Blair Waldorf, Chuck Bass, Nate Archibald and Jenny Humphrey.
The series focused on a group of terribly wealthy, young men and women all attending a high-school.

Now I present you the first episode of the first season:
Last year, Serena had left Uper East Side. She said it to nobody and her best-frien was grumpy. Today she returns to the Uper East Side and everyone speaks about Serena.
Blair, her best-friend doesn't want to forgive him because when Serena left Uper East Side Blair learns that Serena loves Nate, the boyfriend of Blair!

Merci beaucoup! mais on n'a pas le droit à la feuille! je vais essayer de l'apprendre!!

svp