是in night还是at night,是at the afternoon还是in the afternoon

是at night还是in the night 在晚上是at night还是in night in dark night 还是 at dark night sky in night 还是sky at night? 是at day time还是in day time,是at night time还是in night time 是in night还是at night,是at the afternoon还是in the afternoon late-night 介词用什么?on?in?at?late-night;午夜、在午夜，介词用？是at late-night 、on late-night 还是 in late-night at night / in the night in a summer night还是at a summer night 在某些夜晚 是at some night 还是in some night at还是 in a rainy night in Saturday night还是on Saturday night还是at Saturday night 到底是at night还是in night顺便说一下at,in,on都在什么情况下用? My father returned at 10 o'clock_________of June 15A in the night B on the night C at night请问晚上是 in the night 还是at night 是on that unluck night 还是in than unluck night in night 和 at night 的区别 at night汉语是 at night?in the night?什么时候用at night?什么时候用 in the night?