如题所述
正确提问是:这个句子里的连词which可以省略吗?
主句是This is the bus.
定语从句which we travelled on
关系代词which代替先行词the bus做 介词on的宾语,可以省略,也可以使用连接词that 。句子还可以改为:
This is the bus where/on which we travelled.
where=on which=on the bus
表示地点。