It is suprising that 主语 should do 中should 是否可省略

It is suprising that 主语 should do 中should 是否可省略 it is suprising to know that large quantities of waste __ put into the river every year.rtA.is B.wasC.wereD.are为什么 意思So it was suprising thaSo it was suprising that when some of the warriors were taken to the Bristish Musemum for an exhibition,they were an instant success.It seems that they will remain the number onr tourist attraction for foreigners for many it is strange that 英语翻译it is( )( )that It is believe that It is said that. It is that all? it is imperative that? Is it that bad? it is discovered that that it is!和that's it! that it is!和that's it! Not only was it suprising that the Oscar-Winning actress had such atight circle that she was able to concel a secret,but……第二个that引导的是不是一个同位语从句?该如何翻译这句话呢? it is ordered that,it is proposed that is all,that is it ,that is right 区别? It is amazing that 还是It is amazed that That is how it gose,