The correct answer to this open question is the following.
The three complete sentences about a time in your life when you either showed grit or wished you had shown grit are the following.
1.- I was part of the football team in my community and there were some talented players. I knew if I had shown more commitment and work ethic in the gym routines, and being more physical in the practices, I would have had more chances to play as a first stringer.
2.- The next year, after a disappointing season, I change my mind after my dad talked to me about the price I had to pay in practices to have the chance to play. I made a great effort, became a disciple player and did all the things the coach told me to do. I worked really hard and my playing time increased considerably.
3.- Right now I am having some troubles to have good grades in school. A lot of distractions in my life made me lost "the appropriate goals." I need to show my self that I have what it takes to overcome this situation: focus, discipline, perseverance, and working as hard as I can.