形容词性物主代词：my,your,his,her,its,our,their
my friend ,your books
指示代词:this,that,these,those,such,some
this book,that book
不定代词:one/ some/ any,each/ every,none/ no,many/ much,few/ little/ a few/ a little,
other/ another,all/ both,neither/ either
many books each person