as we all known到底对不对啊

as we all known到底对不对啊 the most widely known as we all know well-known是什么意思~又有什么区别~ as is known to everyone对不对,众所周知 All We've Ever Known _______,the compass was first made in China.A.It is known to all B.We all know C.As is known to allD.Itis known that _________to all is that Taiwan is the largest island in China.A.As is known B.As we know C.It is known D.What is known 英语问题：as we all know的know加n吗?众所周知的翻译应该是as we all know 还是as we all known ?到底那个是对的?还是都对?在书上好像都见过.麻烦说明理由. ---,china is a country with more than 5000 years of history,A.it is known to all that B.which is known to all C.as we all knew Das is known to all as we all known 还是 As we all know 正确?用不用分词形式?那为什么有as is well-known 用了分词形式那?急啊~~~怎么区分那 all we've ever known的中文翻译! what we all known和 what we all know哪个对?和as we alwhat we all known和 what we all know哪个对?和as we all know 有啥区别,它们分别是在怎样的句式中? as we all know . as is known to all的意思以及as a known to all的意思 as is known to all中的as是什么词性 it is known to all that 和as is known to all that 区别 如何区别As is known to all与It is known to all? 关于as引导从句1）As we all know,the earth is round.as是介词,有 正如.的意思.2）As is known to us all,the earth is round.As功能同于which,引导非限定性定语从句.那么2）中能不能写成As it is known to us all,the earth as we know ;as is know;it is know 区别.______to all is that Taiwan Is the largest island in china.A.As is know.B.As we know C.It is know D.What is known选哪个.