"Él presenta su idea."
Translation:He presents his idea.
Hola Amigo Wonderboy: Yes, it could be: "He presents YOUR idea"; "He presents HIS idea"; "He presents HER idea"; "He presents THEIR idea"; but we don't know which one to pick because we do not know the context. So Duo just picks one. You should report your other answers to "Report a Problem." ¡Ciao!