Final answer:
The main idea of the passage is the excitement and pleasure derived from a family gathering at the grandparents' house, which is filled with games and quality time that makes the day pass quickly.
Step-by-step explanation:
The main idea of the passage is the anticipation and enjoyment of spending quality time with family during a visit to the grandparents' house. The student looks forward to playing games with cousins and cherishes the fast-paced, fun-filled day, even though everyone is exhausted by the end. The gathering is such a joyful occasion that despite the tiredness, no one wants to depart. This sentiment resonates with experiences described in various passages where family gatherings evoke strong emotions and create lasting memories, such as recalling times with siblings, listening to stories from grandmothers, or celebrating special events like birthdays and family reunions.