C Stanley’s grandfather falling in love with Myra Menke
Explanation:
A flashback is a literary technique that is used to show events that happened in the past to link up with present events in a novel or to bring in a plot twist
In the book "Holes", the event from chapter 7 that is related as a flashback is Stanley’s grandfather falling in love with Myra Menke as this is used to look back some years ago in order to connect with recent events in the book.
The main purpose is that when Juliet wanted to be with romeo so romeo killed himself and Juliet drink poison hope this helps I hope you get it right :P