A. No, los viernes tengo clase de baile.
They are called Damas and Chambelanes . Quincenieras call them "La Corte de Honor" or Court of Honor.
Move out of the way and let her come up first
Yo llegue el sabado ( past tense )
yo llegó el sabado ( future tense )
not sure what tense you need sorry, hopes this helps tho.