We used to cross the river by f___ but now there's a bridge.一开始我填的foot,不过好像没有by foot,而且跟语意也不符,

问题描述:

We used to cross the river by f___ but now there's a bridge.
一开始我填的foot,不过好像没有by foot,而且跟语意也不符,

ferry

ferryboat