In the USA, you can only get a full-time job if you are 16 years old or older. But there are things that teenagers can do to earn(赚) some spending money. Here're a few ideas.
Parents with young children sometimes want to go out for dinner or to the movies, but they don't want to leave their children alone. So, they ask a teenager to stay in the house, be a baby-sitter and look after their children while they're out. If the children go to bed early, you can do some of your homework!
Some people have a dog, but they don't have time to take it for a walk. Dogs need a lot of exercise! So some teenagers work as dog walkers. It's a good idea - you earn money and you're outside in the fresh air. You get some exercise, too!
Teenagers can work at home on their computers. Some companies pay teenagers to take online surveys. They want to know what teenagers are interested in. It's a fun and easy way to make money. You can also design web pages for friends or others. Do you have any old toys, books or CDs you don't use? Sell them online and make some money!
Sometimes, some families pay teenagers to mow their lawns(草坪). It's a great job because you get fresh air and exercise. Mow a lawn carefully and people will want you to do it again. Then you have regular customers, because grass always grows.
You can choose one of them to earn some money. Then you can spend it or save it! But don't forget it's important to always tell your parents where you're going. Be safe when you work.