They are having a (Chtirstmas)party tomorrow.对括号内部分提问___ ___ ___ _英语解答

They are having a (Chtirstmas)party tomorrow.
对括号内部分提问
___ ___ ___ they having tomorrow?

人气：156 ℃　时间：2019-10-08 13:04:36

解答

what party are
我觉得用what 比which好
因为提问的人并没有一个可以选择的范围
若有范围,用which
否则就是what