It was as if she were dead这里的were 为什么不用was

It was as if she were dead这里的were 为什么不用was it looks as if she 's He believed he loved her,and she loved him,it was as if fate had brought them together.请问as if 后为什么用had+过去分词? It was not the time,she knew,to be worring about anyone else as she suerly would if she chose one.帮我分析一下句子语法结构 it looked as if it was on fire.的意思? it seems as if she _ in a dream A.was B.wereit seems as if she _ in a dreamA.was B.were C.is请解释下为什么,A和C为什么是错的 the milk smells as if it is sour.为什么不是 as if it was sour啊 as if it were中为什么不是as if it was? She looked around as if she was/were(?) looking for sth.用was还是were?为什么 play everg game as if it was your It seemed as if the world was at an end! if she has the misfortune of knowing anythingshould conceal it as well as she 省略句和倒装句问题14.-She may not be free today?-_____,we'll have to put the meeting off.A.If may B.If not C.If she may not D.If she may not be free today15.She hurriedly left the room as if____.A.she angry B.was angry C.it was angry D.angry as if it 后应是were还是was?as if虚拟语气的用法 as if i was 帮我修改一段英语剧本,旁白：Although Snow White had been dead a long,long time.She looked as if she was living.She looked as white as snow,as red as rose and as black as ebony.However,one day,it happened a prince came to the seven dwarfs 改成简单句she stood at the gate as if she was waiting for some one She behaves as if she were a child.为何用were而不用was?