英语好的进~帮我造句~

题目

英语好的进~帮我造句~
用us(宾格)、him(宾格)、it(主格)、mine(物主代词名词)、ours(物主代词名词)、his(物主代词形容词)、him(物主代词名词)、its(物主代词名词)、its（物主代词形容词）、their(物主代词名词)、their(物主代词形容词)、hers（物主代词名词）

答案

They often help us.
Do you often help him?
It is a cat.
The book is mine.
Their classroom is bigger than ours.
This is his bag.
The bag is his.
The apple is its.
The cat is washing its face.
Our room is bigger than thiers.
These are their books.
Is the book yours?No,it's hers.