单项选择题
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
A．the new tires on their bikes B．the automobile C．the street car D．the bicycle itself
A．had heart trouble B．had cancer C．had diabetes D．was in a car accident