it的名詞性物主代詞是啥

　　The company needs to improve its competitive edge.

　　公司必須提高它的競爭力。

　　If society is to exist as a unity, its members must have shared values.

　　社會若要成為一個統一的群體，它的成員就必須有共同的價值觀。

　　The school is the first of its kind in Britain.

　　這是英國同類學校中最早的一所。

　　Water will always find its own level.

　　水總會自行流平。

　　It is the first car of its type to have this design feature.

　　這是同類型汽車中首部具備這種設計特點的。