What will you wear for graduation ceremony? Long-sleeved kimono? Hakama? Suit? "Long-sleeved kimono and suit can be worn even if it's not a graduation ceremony, so maybe hakama."
「卒業式って、何着る？振り袖？袴？スーツ？」「振り袖とスーツは、卒業式じゃなくても着れるから、袴かな」