in a summer night还是at a summer night

in a summer night还是at a summer night In a happy summer还是on a happy summer in a snowy night 还是on a snowy night at还是 in a rainy night we can see millions of stars in the sky on a summer night.此句中的on a summer night能不能使用所有格表示：on the night of a summer. ____ a summer night 为什么要用on而不是in或at. We are having a good time in summer还是We are having a good summer? a hot summer day 前面用in还是on就是是用in a hot summer day还是on a hot summer day what a nice winter at night!还是what a nice winter night!或what a nice night in winter! 到底是on a rainy night还是in a rainy night in a dark rainy night还是on a dark rainy night 为什么 ( ) a cold winter night.是用in还是on? We can see m____ of stars in the sky on a summer night.We can see m____ of stars in the sky on a summer night.缺的地方填什么？为什么？ 英语翻译The best wishes for you,I hope you have a good time in summer holiday,good night sometimes we can see ___ stars at night in summer.A millions B million C millions of D million of at summer 还是IN SUMMER over night,over the night,in a night的区别 ()it is to go swimming in a river in summer 应该用what还是how