According to the passage,people's behaviors on the roads are becoming__1__. 2. The author suggests a "________2_________" campaign in order to get control of the situation. 3.Drivers who can manage to control their impulse to revenge when they experience impolite behavior are considered as the most ___3___ and____4___by the author. 4.Encouraging old ladies to cross the road at the wrong moment is referred as___5___politeness by the author. 5.Experts have long pointed out that all road users should be ready to yield to each other due to car-owenership ____6____.