用主格、宾格、形容词性和名词性物主代词造句

主格 I like walking in the morning
I是主格
宾格 please help me to finish this homework
Me 是宾格
形容词性 This is my handbag
My 是形容词性物主代词
名词性 That car is new ,mine is old .
Mine 是名词性物主代词