为何用Were?He speaks English as if he ________ a native speaker

Does he speaks english as fiuently as a native speaker疑问句用so He is f-- in English as though he were a native speaker he speaks Chinese as fluently as if he __a Chinese A were B He speaks English as if he were an Englishman.这里的he不是单数吗为什么用 He speaks English very well as if he ( )an Englishman He speaks English as fluently as if he__________an Englishma His teacher speaks English so well as t__he were a native sp He speaks English as though he were an American.为什么是he were而 he speaks as if he were an Englishman 这里的 were可以用 a native English German speaker She speaks English fluently _____ she were a native American He speaks English as well as,if not betterthan,our english t