Read the passage and fill in each blank with ONE suitable word. 

BICYCLE SAFETY

Having to obey rules and regulations when riding a bike is one of the first experiences children have of the idea of (1) ……. the law. However, a large number of children are left to learn the rules by trial and error, instead of being guided by experienced (2) …….. Every year, hundreds of children visit the doctor or the hospital casualty department (3) ……. crashing on their bikes. This could be easily prevented by (4) ……. them the basics of bicycle safety. Ideally, children should be allowed to (5) ……. only in safe places, such as parks and cycle tracks. When this is not possible, and they are permitted to go on the (6) ……., it is important to teach them some basic safety principles.

First, they ought to learn and obey the rules of the road, which (7) ……. traffic signs, signals and road markings. Second, they should (8) ……. wear a helmet. Studies have shown that wearing bicycle helmets can (9) ……. head injuries by up to 85 percent. In many places, (10) ……. are required by law, particularly for children. Finally, children should be made to understand the importance of riding in areas that are brightly lit and of wearing clothes that make them clearly visible on the road.