完形填空……We live in a big city.Rules are a___ us.There are a lo

完形填空……
We live in a big city.Rules are a___ us.There are a lot of t___ rules.When the street is b___,we must wait on the pavement.We can not r__ to school now.Why?We are too young.Usually our parents take us to school or go back home.We must know,when our parents cross the road,they cannot do this w___ us on their bicycles .We want to live a h___ life ,don't we?Then we must follow these rules.