Using the affirmative and negative tu commands you are telling an exchange student from Costa Rica how to be successful in an Am
erican School....... some example of sentences could be... affirmative
take good notes
go to school on time
listen to the teachers
do your homework
study a lot
negative
don't leave school early
don't eat in class
don't sleep in class
don't be rude to the teachers
don't drink in class
Para tener éxito en la escuela americana tienes que trabajar duro, hacer todo lo que los maestros te digan , y si no obtienes una buena calificación todo el tiempo, no te rindas porque esforzándote y dándote tiempo para acostumbrarte a lo nuevo estarás genial.