ON          AT             FOR       BY        TO       OFF
a)Ann went________ shool_________bus today,not_____foot
b)She waited _______ the bus______the bus stop.
c)When the bus arrived___ the bus-stop,she got ____________
d)Finally the bus reached _____ the school bus stope and Ann got _______.
Помогите надо вставить!!!!!!!!!!!!
Заранее спасибо!