（）is known to us all is that the 2008 Olympic Game will tak

（）is known to us all is that the 2008 Olympic Game will take place in Beijing
A：It B:What C:As D:Which
为什么?能否把所有选项都讲一下
为什么不选A 而老师说如果选As 则是什么非限定什么的是不是在什么地方加一个“,”
如果选了A 会怎么样?为什么不选A

轻舞飞朗 1年前已收到1个回答举报

小东西80 幼苗

共回答了19个问题采纳率：84.2% 举报

这个句子是is known to us all is that ,因为that 前还有一个is,而what 引导的是主语从句,在从句is known to us all 中做主语;若题目是is known to us all that 则选A,其中it作形式主语；若题目为 is known to us ,the 2008~~~~~,则选AS,引导定语从句,有逗号隔开,没有that连接.

1年前追问

轻舞飞朗举报

若题目是is known to us all that 则选A,其中it作形式主语在这个中that引导的从句是不是状语从句啊？还是别的？

举报小东西80

that 引导主语从句，但不充当任何成分，只起连接词作用

轻舞飞朗举报

哦我唉~ 知道了~ 谢谢啦~

举报小东西80

恩~

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（ ）is known to us all is that the 2008 Olympic Game will tak

（）is known to us all is that the 2008 Olympic Game will tak