单项选择题
A．hit each other hard B．stopped C．raced each other D．traveled in the same direction
A．the first bicycle accident B．accidents in large cities C．two of the first auto accidents D．the first vehicles with wheels
A．happened most often in New York City B．do not happen as often as they did in the early days of the auto C．have killed more people since Mister Bliss was killed D．were always the driver's fault