he had put his wallet containing the day's takings into the oven for safekeeping.这里的
问题描述：
he had put his wallet containing the day's takings into the oven for safekeeping.这里的
day's是什么用法
答
意思是：他已经把装有一天营业收入的钱包放进箱子里来安全保管.
day是名词,“一日,白天”,day's是变成所有格形式“一天的”,后面接了名词taking（营业收入）.词类用法众多,又如：Li Lei's book 名字变成所有格形式,意思是“李磊的书”