Article continues below advertisementKai Trump was smitten as she posed with her friends on her first day of senior year. The 18-year-old and her friends shared in their excitement by writing "Seniors" on the windows of their cars.Trump attends the Benjamin School in Palm Beach Gardens, Fla., where she plays golf and excels as a standout pupil.Article continues below advertisement'I Cannot Believe It's My Last First Day of High School'Source: @kaitrumpgolfer/InstagramKai Trump expressed how shocked she is to be in her last year of high school.