In the quiz question
He imprimido nuestras fotografías del viaje, ¿ quieres ver _____ ?
The answer was the singular alguna, and I only knew this from the hint. It seems like the person who was offering to share the photos was being stingy only allowing 1 or 2 photos to share. Would it be wrong if I had a stack of 20 photos to say, Quieres ver algunas? It seems to be a more generous approach to allow another person to see more than just a select 1 or 2 photos.