There are several reasons why school uniforms are a good idea. First of all, uniforms help the school look smart. The students feel that they belong to a particular group. When every pupil in the school wears the uniform, nobody 1 （have）to worry about fashion（时尚）. Everybody wears 2 same style of clothes. Uniforms can be useful in unexpected ways. A school in Ireland has introduced an interesting new uniform. On the edge of the jacket, there is a piece of cloth 3 gives off light in the dark. When the children are walking or 4 （cycle） to school on dark mornings, car drivers can 5 （easy） see them.But can uniforms help improve school standards? The answer 6 this question is not clear. One study in America found that students' grades 7 （improve）a little after the school introduced uniforms. But some students didn't want 8 （wear）the uniform. Other American studies showed no 9 （connect） between uniforms and school performance.School uniforms are 10 （tradition） in Britain, but some schools are starting to get rid of them. Some very good schools don't have a uniform policy. However, uniforms are still popular. Pupils at about 90 percent of British secondary schools wear uniforms.