英语改错：Old people should be spoken politely,请详细写原因

改为
Old people should be spoken TO politely
理由 speak to sb.是固定用法。变为被动语态时to不能丢掉。
原句 we should speak to old people politely
改句 old people should be spoken to politely.
供参考。

spoken后加to.
因为原型为speak to old people，而不是speak old people。speak + 语言则可以。
希望帮到你！

spoken 后边加to
因为 speak to sb···to是不可以省略的
先用主动：We should speak to old people politely
被动就是：Old people should be spoken to politely
希望帮到你

spoken 后加个to

Old people should be spoken to politely
要加to 因为speak是不及物动词,不能直接带宾语.
请及时采纳,多谢!

Old people should be spoken （to）politely.
原句应该是：Young people should speak to old people politely.
这儿是倒装。
不明白的话再来追问。
求采纳，多谢了！

Old people should be spoken to politely.
speak只有接语言时才是及物动词