来自冯丽艳的问题
【We'llhaveaparty___(inon)theeveningofNewYear'sDay】
We'llhaveaparty___(inon)theeveningofNewYear'sDay


【We'llhaveaparty___(inon)theeveningofNewYear'sDay】
We'llhaveaparty___(inon)theeveningofNewYear'sDay
on
有具体时间、修饰语等,用on,
如:onadarknight