What happened when Mario sat on the chair for the first time?
When Mario tried to sit on the invisible chair for the first time, he had difficulty seeing it and missed the seat completely. He fell straight onto his backside.
His classmates laughed at him, but he did not give up and kept trying until he finally managed to sit on the chair.
Explanation
The story describes Mario's first attempt at sitting on the invisible chair. Since he could not see the chair, he could not position himself correctly and fell. His classmates found this amusing and laughed at his attempts.
Solution Steps
Mario had difficulty seeing the invisible chair and missed the seat completely
He fell straight onto his backside
His classmates laughed at him
Mario did not give up and kept trying until he managed to sit on the chair