Perhaps you ride a bicycle to school. a bicycle can be great fun. Do you know to ride a bicycle safely(安全地)?
Careful boys and girls learn to ride bicycles well before they go out on the road. How can you tell whether(是否)you area good rider?
If you can ride a bicycle in a straight line, you can ride .If you can't, you should practice riding a safe place. To be safe on a bicycle, you need to use both hands and both .Keep your feet on the pedals(脚蹬)and your hands on the handle bars(把手)all the time.
Do you have a on your bicycle? If so, put your books and packages in it.Then you can keep hands on the handle bars.
A bicycle is built for one person. It's not safe to carry with you. So you must keep when you ride a bicycle.