a cold night前的介词到底是用in还是at还是on?

a cold night前的介词到底是用in还是at还是on? ( ) a cold winter night.是用in还是on? 到底是at night还是in night in a very cold morning 还是用on a very cold morning,到底是用in 还是on meeting前用的介词是on,at还是in? 求助! trip前加什么介词是in on 还是 at 这个地址前的介词是用in还是at? every week前的介词是哪个,at还是on noon前的介词,是on还是at 节日前用介词ON还是AT 到底是on a rainy night还是in a rainy night tomorrow前的介词是in还是on