___ Christmas eve填on in 还是at

___ Christmas eve填on in 还是at ( ) Christmas Eve 填介词 at christmas on Christmas Eve对吗? would you like to have ___ dinner with me on christmas eve?a.a b.the c.an d./ at Christmas eve or on Christmas eve是那个比较恰当呢?外国人常用哪个? at eve还是on eve就eve,没有christmas之类的 ___ Christmas,people are often busy ____ shopping.A.At...going B.At...go C.On...going D.On ...go为什么不是A,At Christmas不就是解释在圣诞节吗？是不是答案错了？On Christmas Eve christmas eve前面究竟加介词at 还是 on? Christmas Eve前面是用at还是on Christmas Eve前加in at to还是on On Christmas Eve--the night before the festival是什么意思 on christmas eve与on the christmas eve有什么区别?在圣诞节前夜应该用哪个? a Christmas a Christmas Eve前面是加ON还是IN? happy christmas eve是什么意思? Merry Christmas Eve! christmas eve ,everyone must christmas Eve要 发音! When is Christmas Eve