They are busy-------(have)an evening party. have用什么形式.

They are busy-------(have)an evening party. have用什么形式. 英语句子改错（每句一处）1.they are busy preparing an evening party. how about___（have）an english Party this evening?适当形式填空 dear tom we are going to have an english evening party this They are busy ________ (have) lunch. We will have an Evening party( )Friday afternoon. 用介词填空They are having an evening party （ ）the music room. They are too busy.They have to___Mrs.Green___their housework they (have)a party have,they,English,party,an,this,afternoon(.)连词成句 Will they have an English party?怎么回答 Are they going to have a birthday party?是什么意思?