帮我用这些单词造句，谢谢了，急用的

形容词性物主代词：my ,her,his,their,its 名词性物主代词：mine,hers,his,theirs 主格：I she he they it 宾格：me her him them it 例：My book is on the desk.His ruler is under the chair.Her hair is long His book is new but mine is old.(mine=my book，为了避免重复）We ...