this book is mine , yours are over there.
there are three books ,mine are the green one.
is this bike yours?No,it's his.
this birthday cake is yours.
is that bike his?Yes,it is.
look,there are two watches.the green one is yours,and the other one is his.
is this dress your mother's?Yes,it's hers.
those cakes are hers.
I have a dog.this ball is its.
these bags are ours.
your bags are over there,these are ours.
are these pens yours?No,they are theirs.
名词性物主代词和形容词性物主代词的区别在于：形代后有名词，例如your book,名代后没有名词，它自己已经是一个名词。
