她是个走路很快的人。

She is a very fast ___walker.

坐公交车回家的孩子五分钟后离开，但走路的人现在就可以离开。

Children who take the bus home will leave in 5 minutes, but the ___walkers can leave now.

司机必须预测走路的人的动作以避免事故。

Drivers must anticipate the movements of ___walkers to avoid accidents.