资料题：The"new set of wheels" that bicycle riders.had to get used to was（　）。

People enjoy talking about"firsts".They like to remember their first love or their first car.But, not all fists are happy ones.Few people enjoy recalling the firsts that are bed.One of history's bad but important firsts was the first car accident.Autos (汽车)were still young when it happened.The crash took place in New York City The year was 1896.The month was May.A man from Massachusetts was visiting the city in his new car.At the time, bicycle riders were still trying to get used to the new set of wheels an the road.No one is sure who was at fault.In any case, the bike and the car collided.The man on :the bike was injured.The driver of the car had to stay in prison and wait for the hospital report on the bicycle rider.Luckily the rider was not killed.Three years later, another automobile accident took place.It was again in New York City.A man named Henry Bliss stepped off a streetcar.He was hit by a passing car.Once again, no one is sure just how it happened or whose fault it was.The driver of the car was put in prison Poor Mr.Bliss became the first person to die in a car accident.