__is known to us all is that America is a developed country__the First World.

__is known to us all is that America is a developed country__the First World.
选Which; belonged to ,还是As; belonged to ,
其他人气:204 ℃时间:2019-08-26 07:01:16
优质解答
如果不是你的答案是错的,就是你的题抄写错了.我就直接说吧,下面3个结构不同,你要看清楚你的题是哪一个.
It is known to us that.
As is known to us, +一个句子. (注意,us后面有一个逗号,这很重要)
What is known to us is that...
你这题应该是第三种,如果你题没抄错. 也就是选What ,belonged to谢谢你的回答,可是题和答案都没抄错啊,我按原题抄的啊,而且我又对了一遍的如果你确定题没抄错,我肯定是What, belonging to
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