It’s known to all that.改成what is known to all is that 中为什么要加is?我说的意思是把it换成what，that后为什么要加is

it known to all还是it is known to all It is well known to all,they have done colour printing in China since the 12th century修改病句 It’s known to all that.把it换成what,that后面为什么要加上is. It's well-known to all that...请问这句是系表结构还是被动语态?　TO　ALL在句中做什么成分?为什么? 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? It's known to all that reading -----one's knowledgeA.is increasing B.increases C.has increased D.increased it is known to all that smoking is harmful to one's health “ that” 作什么成分啊? As is known to all 与It is known to all 区别?1.( )that the earth is round.A.As is known to all B.As you seeC.It is known to all D.As is seen A B C D的区别?2.Whether way s will be found to stop pullution or not is just ()worries the public.A,why 初中英语填空【一题】it's september 13th,and we're all back to school ,it's good to[] all my teachers and friends again It's known to all that___light travels faster than__sound.A./ / B.a / C.the the D.the a It's known to us all that some of the signs are represented----creaturesAfor Bby Cwith Dof It is known to all that sea water__(contain)salt. as it is known to all与as is known to all与it is known to all请问,有没有as it is known to all THANK YOU! It’s known to all that.改成what is known to all is that 中为什么要加is?我说的意思是把it换成what，that后为什么要加is It’s known to all that.改成what is known to all is that 中为什么要加is?我说的意思是把it换成what，that后为什么要加is it is known to us all,as is known to us all和what is known to us all有什么区别 it's well known