问题
选择题
—What happened to Bill?
—He ________ really fast when suddenly he ran into a parked car.
A．had run
B．was running
C．has run
D．has been running
答案
答案：B
B 考察动词时态。句意：—Bill怎么啦？—他跑得很快，突然撞到了一辆停着的车子上。根据when suddenly he ran into a parked car可知他奔跑是在过去一段 时间里发生的动作，所以使用过去进行时。故B正确。