In "Geraldo No Last Name" by Sandra Cisneros, what questions could someone conceivably still have about the story?

This carefully constructed fragment actually leaves us
with many questions that we could conceivably ask. These concern the identity of
Geraldo, why Marin was out so late and the exact nature of the relationship between
Marin and Geraldo bearing in mind that Geraldo had to conceal his
identity.

Yet these unanswered questions only serve to
reinforce the central theme of this vignette, which is focussed on the plight of migrant
workers and the way in which they had to, by necessity, deliberately obscure their
identity to prevent their discovery and explusion from the country. The end of this
vignette suggests that what is unknown about Geraldo goes along with his working
conditions and what he suffered as an illegal migrant, "just another brazer who didn't
speak English." Thus it is that his true identity remains unknown, just as his living
conditions, the "sleeping rooms he rented" and his working conditions remain unknown: an
ignored part of American society.