doyou remember howlong( )in the factory?4years.a have you been working b you have been working为什么选第二个不选第一个

doyou remember howlong( )in the factory?4years.a have you been working b you have been working为什么选第二个不选第一个 how doyou come to Doyou have an u_______stamp remember Remember Remember remember remember what doyou need for making What kind of food doyou like best? DOyou often go swim in summer.改错 what doyou think happened to sb 英语翻译What，doyou,want,to,do?翻译 the pants( ) only 50yuan Doyou want() I+MISS+YOU+DOYOU+KNOW++是什么意思 Are you 和Doyou 的句式、语法 I miss you ing Doyou konw? doyou()dogs?yes,ido.ihaveadog.括号里应填什么?