两个句子：1.It seemed as if the world was at an end.2.If he were here,everything would be all right.可以确定两个句子都准确无误,第一句取自教科书.所以
问题描述：
两个句子：1.It seemed as if the world was at an end.2.If he were here,everything would be all right.可以确定两个句子都准确无误,第一句取自教科书.所以,虚拟语气中was 和were的用法有何不同,在什么样的情况下可以相互替代,在什么情况下又不可以相互替代?哪些情况下可以用was
答
虚拟语气中,只要是be动词,用were 准没错
偶尔,单数主语之后有用was的,尤其是口语和非正式文体中,但不及were 来得规范
if条件虚拟句中were可用was替换吗最好用were, 保险！