阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
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, so she had a cane (手杖) near her,       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 easily out in the wet parking lot, and no one would have known she had fallen. I knew she     (need) my help, and her smile was enough    (make) my day.