____surprised us very much that our teacher left with out a word A that B what C it D he为什么C不行?
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____surprised us very much that our teacher left with out a word A that B what C it D he为什么C不行?
____surprised us very much that our teacher left with out a word A that B what C it D he
为什么C不行?
____surprised us very much that our teacher left with out a word A that B what C it D he为什么C不行?
是哪位告诉你不能选C!如果真是这样,那是在误人子弟.
1、选择 C.it
It surprised us very much that our teacher left without a word（老师一句话也没说就离开了这件事使得women非常吃惊）
语法结构如下：
* 形式主语：It （或者叫先行主语,指代后置的主语从句）
* 谓语部分：surprised us very much
* 主语从句：that our teacher left without a word
2、选择 B what
如果确实是选择 what,那么就是你自己在这个句子中落掉了一个重要动词 is,即——
What surprised us very much (is) that our teacher left without a word.(让我们非常吃惊的是老师一句话也没说就离开了)
语法结构如下：
* What 引导的主语从句：What surprised us very much
* 系动词：is
* 表语从句：that our teacher left without a word.
注：what 叫做关系代词性连接代词,等于“先行名词 + 关系代词”,相当于汉语的“所…的事情”,因此 What surprised us very much 也可以用 The act which surprised us very much（让我们更感到惊讶的举动）,其中——
被修饰先行词：The act
定语从句：which surprised us very much
整个句子就可以改写如下：
The act which surprised us very much is that our teacher left without a word .
答案应该就是C: it 。It 在这里作形式主语，后面that引导的真正的主语位于句末。如果原题中的that前面有一个was的话，就该选B: What 了。
我觉的这道题就是选C吧
我觉得是C