Several years ago I started riding a bike. At first, I thought it was only a ________ ride. But as I built up strength, my friends encouraged me to try some longer ________. The first one to come along was a 150-mile journey, an event held every year to raise money for fighting cancer.

When I signed (签署) my name, the ________ seemed great — to support the charity work while going for the ________— and I trained with great excitement. But as the time for the ride came near, my ________ went beyond my endurance (耐力). I didn’t really want to bike all those miles for two days straight.

The ride began on a Sunday morning in the Georgia countryside, and for the first few hours I felt ________. This was just the experience I had imagined, and my spirits were high. But by the end of the day, I felt tired. I was sure I’d have to ________.

As I topped the hill, the nice sunset ________ me going for a few minutes more. Then in the distance, I saw a lone rider riding very slowly. I ________ that the person looked different in some way, but I couldn’t tell why. I managed to ________. There she was, riding slowly but steadily, with a confident smile on her face—and she had only one leg.

My attention ________ at that moment. I’d been doubting my body for a whole day. But now I knew—it wasn’t the body, but the will (意志) that would help me get to where I want to go.

It rained all the second day. I never saw the one-legged biker again, but I pushed on without ________. And at the end of the day, still feeling strong, I completed the 150th mile.