Final answer:
The flashback in Holes connects to the present day plot through determination.
Step-by-step explanation:
The flashback in the passage from Holes connects to the present day plot by showing determination. In the flashback, Elya is determined to carry Madame Zeroni up the mountain, even though he is not yet strong enough.
Similarly, in the present day plot, Stanley is determined to dig a hole and make progress, even though he initially struggles with the heavy shovel. Their shared determination links the two storylines together.