in a summer night还是at a summer night

in a summer night还是at a summer night sometimes we can see ___ stars at night in summer.A millions ____ a summer night 为什么要用on而不是in或at. at还是 in a rainy night at summer 还是IN SUMMER 英语翻译Sleepless at NightIt was a normal summer night．Humidity( In a summer night in Taiwan,Xiao Hong was going on her way t 1a terrible storm took place in z summer night.the2wind was we can see millions of stars in the sky on a summer night.此句 We can see m____ of stars in the sky on a summer night. the story happened ____ a rainy night ______ last summer 找一首歌 ONE SUMMER NIGHT