A passengertold an air hostess(空姐) that heneeded a cup of water when the plane just took off.She told him that she wouldbring him the water soon.Twentyminutes later,when the passenger's ring for service sounded,the air hostessrealized it at once.

A passengertold an air hostess(空姐) that heneeded a cup of water when the plane just took off.She told him that she wouldbring him the water soon.Twentyminutes later,when the passenger's ring for service sounded,the air hostessrealized it at once. ||An|-|a|| a/an ufo a/an alien好评 Is that elephant or lion.A.an; a B.a; an C.an; an D.an; / 不定冠词a an用法 ( )useful book a/an _exciting place(a.an) a和an是什么意思 a an是什么词 a还是an uniform a,an,the,/填空 a,an的用法 A smiling an An e____has a trunk a an 的用法 用a还是an 要用a还是an? 用a,an或/