Original sentence: In Batgirl's case, this is because she graduated and is attending college ("Attack of the Terrible Trio").The opening to Season 5 has Batman team-up with Superman (George Newbern).The series finale featured the entire Justice League.Villains included are Lex Luthor (Clancy Brown), Mercy Graves (Gwendoline Yeo), Metallo (Lex Lang), Count Vertigo (Greg Ellis), The Wrath (Christopher Gorham), Toyman (Richard Green), Shadow Thief (Diedrich Bader), Sinestro (Miguel Ferrer), Mirror Master (John Larroquette), and the Terrible Trio (David Faustino, Grey DeLisle, and Googy Gress)
Edited sentence: In Batgirl's case, this is because she has graduated from high school and is attending college ("Attack of the Terrible Trio").In the season's first episode, Batman teams up with Superman (George Newbern).The series finale features the entire Justice League.Villains include Lex Luthor (Clancy Brown), Mercy Graves (Gwendoline Yeo), Metallo (Lex Lang), Count Vertigo (Greg Ellis), The Wrath (Christopher Gorham), Toyman (Richard Green), Shadow Thief (Diedrich Bader), Sinestro (Miguel Ferrer), Mirror Master (John Larroquette), and the Terrible Trio (David Faustino, Grey DeLisle, and Googy Gress)