On it was a piece of paper 是什么句式?

On it was a piece of paper 是什么句式? He has a piece of paper ()our names on it. On every piece of paper was a picture of a horse a piece of paper there is a piece of paper,on it __ words"this is a pen" Jane put a piece of paper with her name and dress on it into In his hand there is a piece of paper with some words on it: Jane put a piece of paper with her name and adreess on it in Jane put a piece of paper with her name and address on it in a piece of paper money a piece of paper中文 a piece of paper 是什么意思