"ella es una chica" means "she is a girl" in Spanish.
"Your friend is a good person" is "Tu amiga es una buena persona" in Spanish.
"Es mi amiga" means "She is my friend" in Spanish.
Se dice "uma amiga" en portugués.
The question is "Is she a student in a Miami school?" The response, therefore would be: "Yes, she is a student in a Miami school." or "No, she is not a student in a Miami school." The Spanish of those two responses are: "Sí, ella es alumna en una escuela de Miami." and "No, ella no es alumna en una escuela de Miami."
Yo la conozco; es una amiga. I know her (I recognize her); she's a friend
You would say "Ella no es tu amiga." (or su amiga for the formal you, usted) If you mean 'She is not my friend' - "Ella no es mi amiga".
"ella es una chica" means "she is a girl" in Spanish.
Ella es una maestra
Ella es una chica mala
Well, first of all, it should be "ella es una doctora" and it means "she is a doctor."
muchacha amiga
amiga
"Your friend is a good person" is "Tu amiga es una buena persona" in Spanish.
"Es mi amiga" means "She is my friend" in Spanish.
It depends on what kind of vet you mean. If you mean she a veteran, it's, "Ella es una veterana." If you mean she's a veterinarian, it's "Ella es una veterinaria." In Spanish, there is no foreshortening of those words; they say the entire word, all the time.
Se dice "uma amiga" en portugués.