How to say “The choir is rehearsing in the music room until four, so our band will have to wait.” in Japanese
In Japanese
合唱部が4時まで音楽室で練習してるから、うちのバンドはそれまで待つしかないね。
Gasshōbu ga yoji made ongakushitsu de renshū shiteru kara, uchi no bando wa sore made matsu shika nai ne.