the regulations were made———— children after the accidents

选 B to protect
用不定式,表示目的请您每一个答案分析一下为什么是错误的 谢谢我英语水平不是很好 请包涵这个是被动语态，变成主动语态，就是：We made the regulations to protect the children.变成被动语态，就是：The regulations were made to protect the children.把这两个句型记住就好了。其他的答案都是不对的。