Now they are ___ the bus to the farm.(riding ride on by)哪个对?

问题描述:

Now they are ___ the bus to the farm.(riding ride on by)哪个对?

on
公车不能用骑 riding ride 淘汰
如果用by 那么应该是 go somewhere by bus
只有on

Now they are on the bus to the farm.现在他们正乘汽车去农场。

ON
他们现在在往...去的车上