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I enjoy doing physical training in my free time. Yesterday, when I was working out at a gym on my lunch hour, I saw    elderly lady there riding on a bike. She couldn't walk very well,    she had a cane (手杖) near her, but she was still there    (work) hard.
After I finished my exercising, I told her that I was going to wait for her    she got done and that I would walk her out to her car. It was a little far to her car and it was a    (fog) day yesterday in Missouri. I walked her to the car and opened the car door for her,      won me her big smile and gratitude.
I know    is a small thing, but I felt so good inside for helping her.   my help, she could have fallen so    (easy) out in the wet parking lot, and no one would have known she had fallen. I    (know) she needed my help, and her smile was enough to make my day.