Answer: I think that you were suppose to complete the sentence. So instead of saying "No hay muchos." You were suppose to say "No hay muchos estudiantes en la Nebrija." I hope this helps. :)
It's b) Vas a comprar un vestido
Estoy is a single word you can say
It means what is the date of st.patricks day
you would reply "la fecha de el dia de san patricio es ____ ."
