have lunch .have a coffee .have a sandwich .这三句中,为什么后两句要在have后加a?在某些时候为什么又可以直接说have coffee or drink coffee ,而不用加a 那对语意和语法有影响吗？

Sam ( ) at twenty to twelve .A.has lunch B.have lunch C.eat lunch i feel hungry.let is stop _______ A.havinglunch B .to have lunch C .had lunch D.have lunch have a quick lunch还是have a quickly lunch为什么 What____you often_____for lunch at school.A.do,have B.are,have C.are,going to have have a big lunch翻译 Did you have a lunch? 吃午餐是 have a lunch 还是 have lunch 为什么? 英语中have lunch 还是 have a lunch ,还要理由 A:________ time do you have lunch?B:I usually have lunch at 12.A.Where B.What C.When A:________ time do you have lunch?B:I usually have lunch at 12.A.Where B.What C.When have a dinner 还是have dinner 同问是have lunch 还是have a lunch?那是have a good lunch还是 have good lunch It’s time _____ lunch .A.have B.to have C.having after_____ lunch,we often have 45 minutes' rest A.have B.has C.to have D.having. ----Where ____ you ____ lunch?----At home.there is no school lunch.A.do have B.did have C.will have D.are having have lunch与eat lunch have a big lunch的中文 a big lunch前面为什么加have Do you want to have a lunch,