为什么用he were而不用he was?

为什么用he were而不用he was? he was a boy,she was a girl 为什么是用was而 不用is He is the man which he was.这里为什么不用who而用which呢, how was their holiday 为什么用was而不用were it was because he was ill that he didn't come 为什么要用that而不用wh It is me that he blamed． 为什么用 is 而不用 was? he did not understand English.句中的为什么用did 而不用was? he asked me if i was to watch the football game.为什么不用were? I thought you were be taller.这里为什么不用was,而用were? Susan is walking slowly as if she were tired问:为什么用were而不用was he was the tall man with beard为什么用了with beard而不用with a beard 英语翻译那为什么用were不用was?