To be promoted to a Private, you must return the three papers given to you by your instructor at the beginning of the year with your signature. After this, you're on your way to other promotions!
To be promoted from Cadet Private to Cadet Private First Class, you need to be able to draw and name all of the ranks (enlisted and officer ranks). You must also be able to recite the Cadet Creed to an instructor. Below are the resources that you will need to pass the PFC promotion test. Best of luck!