When their father died,they thought it their duty to keep Eric in_英语解答

When their father died,they thought it their duty to keep Eric in hiding.这里面为什么要...
When their father died,they thought it their duty to keep Eric in hiding.这里面为什么要加it?

人气：369 ℃　时间：2020-01-28 19:56:54

解答

it是形式宾语啊,真正的宾语是后面的动词不定式.其实it后面省略了to be,加上了之后是不是好理解了呢,你可以把句子还原成这样：they thougut it to be their duty to keep eric in hiding.或者they thought to keep e...