she looked as if she were made of ice 主句用了过去时 为什么从句不用过去完成时

He did it as if he were an expert.从句表示的动作发生在过去,为什么不用过去完成时 Susan is walking slowly as if she were tired问:为什么用were而不用was If主句用过去将来时,从句用一般过去时 If主句过去将来完成时,从句用过去完成时 这两种if从句的 She looked around as if she was/were(?) looking for sth.用was until从句用过去时,为什么主句也用过去时,可不可以用过去完成时 为什么主句用过去完成时,宾语从句用过去将来时 这句是主句用过去时,从句就用过去完成时吗? as if引导的从句,主语为第三人称时,系动词be用was还是were（主句为过去时态） 主句是过去时从句用一般过去时、过去进行时、过去将来时、过去完成时造句 She behaves as if she were a child.为何用were而不用was? she looked at me as if I were a stranger. 老师说这里用虚拟语气,可是怎么知道这 英语一段话不懂从句动作先于主句动词动作 过去时 过去完成时（be的过去式为 were） 从句动作与主句动作同时发生 现在