1、There is no denying that + S + V ...(不可否认的...)

例句：There is no denying that the qualities of our living have gone from bad to worse. 不可否认的，我们的生活品质已经每况愈下。

2、It is universally acknowledged that + 句子~~ (全世界都知道...)

例句：It is universally acknowledged that trees are indispensable to us.

全世界都知道树木对我们是不可或缺的。

3、There is no doubt that + 句子~~ (毫无疑问的...)

例句：There is no doubt that our educational system leaves something to be desired. 毫无疑问的我们的教育制度令人不满意。