his/her room
Ponle esta tarjeta y llévalo a su cuarto.
Give him this card and take him to his room.
— State and Main (2000)
Tom quería que Mary limpiara su cuarto.
Tom wanted Mary to clean his room.
His room is a mess.
Se despertó al día siguiente y su cuarto le pareció distinto.
He woke up the next day and his room seemed different.
— It's Such a Beautiful Day (2012)
Ella se puso a llorar tan pronto entró a su cuarto.
She started crying as soon as she entered her room.
Subió al ascensor hasta su piso y se dirigió a su cuarto.
She took the elevator up to her floor and went to her room.