Nosotros “leímos” juntos el la biblioteca de la escuela
Most likely hamburger, as hamburgers are not traditional Spanish foods. Also, tortillas originated from Mexico and pinatas from Spain (most likely), and sauce is such a generic type of thick liquid that every country has, so that it could have no way originated just from the Spanish language.
Lunes, martes, mericoles, jueves, viernes,sabádo, domingo
Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Piano in Spanish is Piano
It may sound a little weird but they are spelled the same in English and Spanish, Piano is an keyboard instrument used to play music.