Once seen ,it can never be forgotten这是一个分词做条件状语从句吧?它的主语是什么?逻辑主语与句子主语一致?

once seen,it can never be forgotten为什么说seen是状语? once seen,it can never be forgotten.这里为什么用过去分词? On condition that film is seen once ,it can never be forgotten.改为同意句：On condition that ___once ,the film can never be forgotten. ____ seen,it can never be forgotten.横线处该填：a)Twice b)Since c)After d)Once最好是说以下原因, Once seen ,it can never be forgotten这是一个分词做条件状语从句吧?它的主语是什么?逻辑主语与句子主语一致? once to be seen 和once being seen的区别 The new hall is the tallest building in this town._____from here?A .Can it see　B .Can it be seen　C .Can it seen　D .Can see Once ____(speak)out ,it can't be taken back. Once years,Time can erase the memory of it? once it starts,nobody can stop revolving cogwheel.中文是什么 英语智力测试.请大家来帮帮忙1.What word can be seen if jump into the water? 2.What comes twice a moment ,once a minute and never in a hundred years? 3.It has five letter.it ha six left if you make two letters away.What is it ? 4.He is a y Friendship is like earthenware : once broken, it can be mended ; love is a mirror ; once broken , that ends it . Friendship is like earthenware:once broken it can be mended;love is like a mirror:once broken,thaoends it. 〓英语〓一道关于非谓语动词的选择题〓小诺求助〓Once lost,_________________________.A.it is hard to get such a chance again B.to get such a chance will be difficult C.one can never get such a chance again D.such a chance might ne 英语翻译Step 4Once the edge direction is known,the next step is to relate the edge direction to a direction that can be traced in an image.So if the pixels of a 5x5 image are aligned as follows:Then,it can be seen by looking at pixel a,there ar Done Stealin' 歌词I had the chance to sayRemove the walls,let's clean the slateWould it make us newShould we find a way to startWithout the mess we've made this farWould it make us newI've seen this once beforeDon't need to see the end,noI can't ge 求详解once begun还是once beginning?The research is so designed that once begun,nothing can be done to change it.我知道此处是省略了once (it is )begun,但once beginning What is it when once lost,you can never find it again?