What seemed impossible a hundred years ago?

after what seemed 是什么意思 What seemed impossible a hundred years ago? After what seemed an hour ,he came back. After what seemed to be a hundred years After (what) seemed like hours he came out with a bitter smilewhat代什么,引导什么从句,After (what) seemed like hours 是什么从句,用it怎么说 为什么不能说“After it seemed to be a long time”而要说成“After what seemed to be a long time ” 为什么用“what”而不用“it”. What seemed to be like days was just a moment in time,but it mean the after what seemed a long time,the soldiers came back to the front He seemed ____ at what you said at the meeting.surprising surprise surprised to surprise after-----seemed a long time ,he apeared again 为什么填what,不填it 或者that After _____what seemed half an hour,he came at last.A.itB.whichC.thatD.what She seemed to be (相当) surprised at what he said.请问是否可以填quite? they did not recognize each other after what seemed quite some time 怎么翻译? Things were not( ) they seemed to be.A that B as C what D like 英语seem用法疑惑_______nobody knew what had happened.A.It seemed that B.It seems that 到底是seemed还是seems?为什么? it seemed that after what was a long time she began to wake up解释为何用what After what seemed like hours,I opened my eyes and found myself in bed.what后面是什么从句主从吗 英语 同义句改写It seemed that he felt sorry for what he did.It seemed that he felt sorry for what he did.改为（ ） （ ）very sorry for what he did.