There are a large number of signs around us .We can find them here and there.There are mainly four kinds of signs:direction signs,information signs,warning signs and instruction signs.Direction signs can tell us where we can go.They can show us the way.Information signs may tell us where we can find the hospital or the car park.They make our life more convenient.Warning signs tell us what we must not do.They keep our life safe from danger.Instruction signs tell us how we can deal with the problems.They make our life easier.
Signs are useful in our daily life.If there are no signs in the library,the library will be noisy and messy.If there are no signs in the street,there will be more accidents.Signs are necessary to us.