it的名词性物主代词是its。it:pron.(指提到过的或正在谈论的动物或事物)它;指婴儿,尤指性别不详者;指已知或正在发生的事实或情况;
例:
Have you any idea of its value?
你知道它的价值吗?
It is estimated the project will last four years.
据估计,这项工程将持续四年。
It's only human nature to be worried about change.
对变革有忧虑不过是人之常情。
The car is in remarkably good condition for its age.
就车龄而论,这辆车的状况好极了。