英语任务性阅读根据短文内容，完成句子。Road accidents are often brought about by

英语任务性阅读
根据短文内容，完成句子。Road accidents are often brought about by carelessness(not careful). There are many rules that help to make the roads safe. Before crossing the road, we must stop and look both sides. Look left, look ringht and look left afain. Then if we are sure that the road is clear, it is safe to cross the road. If we see small children or very old persons,or blind persons, waiting to cross the road, we should help them go across the road safely. Children must be taught not to play on the roads.1.If people are ___, there will be many road ____.2.We have to obey the ____ to make the streets.3."The road is clear" means "There is ___ car__."4.We should help small ___, old ____ and the blind to cross the road.