of,from,in和on的用法,说句型,
问题描述：
of,from,in和on的用法,说句型,
答
of .的a book of mine名词所有格a leave of the treefrom从.时间from morning till night地点from Shanghai to Guangzhou固定短语come from,be fromin在.里a light in the roomon在.上面There is a book on the desk...