Kaname is worried about never seeing Mary with friends from her class.; Mastushita assumes she has lots of friends.  But what does Mary think?
If you're not going to serve, 
I'm giving the ball to the other team.
Si no vas a hacer tu servicio, le 
daré el balón al otro equipo.
Si no vas a hacer tu servicio, le 
daré el balón al otro equipo.
Se não for sacar, vou dar o 
ponto para o outro time.