as if Prince Charles were the expected guest
问题描述：
as if Prince Charles were the expected guest
为什么用were不是was
答
这里were表示虚拟语气,不可能发生或实现的事情
类似的句子有很多,比如说：
If I were a bird...(事实上我是人,不可能变成鸟）
If it were raining yesterday...（事实上昨天是个大晴天）