Perhaps you ride a bike to school. Riding a bike can be great fun. Do you know to ride a bike safely?
Careful boys and girls learn to ride (they) bikes well before they go out. How can you tell if you are a (well) rider?
If you ride a bike in a straight line, you can ride well. If you can't, you should practise riding in safe place. To be safe on a bike, you need (use) both hands and both feet. Keep your feet on the pedals (踏板) and your hands on the handlebars all the time. you have a basket on your bike? If so, put your (book) and packages in it. Then you can keep both hands on the handlebars. You know that your bike is built only one person. It is not safe to carry (someone) with you. Why is this so? Keep yourself safe by safety rules when you ride a bike. （watch) where you are going at all times.
