A
It be done 據(jù)……聽……
As we can know 正如我們知道的我也選的A，但錯(cuò)了??！是D??！抓狂ing。。。查了一下as is known to all 是可以的，它和 as it is known to all 是相同的意思，都是“眾所周知”，而用法上面略有些不同， as is known to all 只可以用在句首或句尾，用“，”隔開。而as it is known to all不僅可以放在句首，還可以后面加“that”從句。而it is known to all 是形式主語(yǔ)的典型，只用于如it is known to all that our teacher is beauful.