A few weeks ago, my friend had a ya rd sale. I thought it would help to clean my 9-year-old son's room. We agreed that whatever we sold in toys would be his money. 

The night before the sale, we put toys on the truck as well as a little bike that was too short for my son now. This little bike had at least 2 owners before it came to my son. It was not in the best shape and it certainly was not shiny new but it was still a bike, and the tires(轮胎) were still good. 

We put a price of $ 10 on it but it didn't sell. So after the sale was over, my friend put it on the sidewalk with a sign that said"FREE BIKE". Within five minutes, a little girl was standing there. She asked if the bike was really free. My friend said yes. The girl smiled and rode away quickly.

Later that evening when I told my son how much money he had made at the yard sale, he smiled. When he asked about the bike, I told him that a little girl was very happy because she got the bike for free. The grin(咧着嘴笑) on my son's face was much more than when I told him how much he had made. He was so thrilled to hear that someone else would get good use of that little bike. 

The bike was given to us, so in this way, I guess we got to pay it forward!

—Three or four times.

Let's  the things to charities.

Most children like watching TV. It's very(interest). By watching TV, they can see and learn a lot and know many things about (they) country and the world. Of course, they can also learn over the radio. They can learn something more(quick) from those TV(program) because they can hear and watch atsame time. But they can't see anything over the radio. TV(help) to open children's eyes and minds. Many children watch TV only on Saturday or Sunday evening,they often have a lot of homework to do. But if they spend more time(watch) TV, they will have(little) time to do their lessons and fall other students. So when you want to watch TV, you must remember, "Study must come first."