El padre le da la receta a la señorita. Senorita was the indirect object noun, why add to “le” in front of the da?And,:Qué le hace el médico al enfermo? Enfermo was also the indirect object noun, why add to “le”?
And, :Le receta el médico al enfermo unas pastillas? Enfermo was also the indirect object noun, why add to “le”?