It is playing computer games ____ he spends so much time that he fails all the exams.A.which B.in which C.that答案选C.为什么不能选A,B. 分析详细点!

It is playing computer games ____ he spends so much time that he fails all the exams.A.which B.in which C.that答案选C.为什么不能选A,B. 分析详细点!
It is playing computer games ____ he spends so much time that he fails all the exams.
A.which B.in which C.that
答案选C.为什么不能选A,B. 分析详细点!

It is playing computer games ____ he spends so much time that he fails all the exams.A.which B.in which C.that答案选C.为什么不能选A,B. 分析详细点!
so that是固定词组,对句子不产生影响,只是迷惑你的
it is that/who是强调句型,强调句型有一个特点是
it is that/who去掉,句子仍然成立,但这个句子因为强调的是宾语,宾语提前,所以去掉后有些别扭,一般人们不这么写
至于为什么不是定语从句,有些复杂,spend time （in）doing something或者spend time on something,
如果认为这里是定语从句,选A的话which修饰名词,如果playing computer games做名词,则只能用spend+on something,这里没有on
如果选B也是一样的道理,playing computer games作名词只能用on
不过即使用on,整个句子也是不通的,最好是多做,靠语感判断,否则考试时间短,没工夫仔细考虑原因

此题整体为强调句型，强调playing computer games ，而不是定语从句，后面那个that构成的是so...that...句型，对前面不产生影响

It is...that 是固定的强调句型，是非定语从句，which的详细用法，参考以下链接
http://dict.baidu.com/s?wd=which

你千万别听楼上瞎扯。。。（我不是故意的但是我看到的时候有点生气，你误人子弟了孩子），首先，一楼没有that...so....这个说法的，而且这里的so much time才是词组好不好。。。还有这里和修饰he有神马关系啊。。。其次，后面两楼，强调句式It is...that里的that是后面一个啊不是这里填的这个，你仔细琢磨琢磨，更不是so ...that...别一看到so...that就上，是有...

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你千万别听楼上瞎扯。。。（我不是故意的但是我看到的时候有点生气，你误人子弟了孩子），首先，一楼没有that...so....这个说法的，而且这里的so much time才是词组好不好。。。还有这里和修饰he有神马关系啊。。。其次，后面两楼，强调句式It is...that里的that是后面一个啊不是这里填的这个，你仔细琢磨琢磨，更不是so ...that...别一看到so...that就上，是有点迷惑人啊，要仔细考虑！！！！！
啊，扯远了，in which这个词组（话说不能叫词组吧）当然是有的，是连词，表达"在...里面"，in which 只能用在定语从句中，意思等于where,比如啦：He lived in the house in which Tom once lived.所以这个B肯定不对。
再来看which和that，这两个是非常重要的区分问题，下面这个不是我总结的，但是搞得很好，你看看。
只能用that 的几种情况
1．当先行词是anything, everything, nothing (something 除外), few, all, none, little, some 等代词时，
Have you taken down everything that Mr. Li has said?
2. 当先行词被序数词修饰
(1) The first place that they visited in London was the Big Ben.
3. 当先行词被形容词最高级修饰时
(1) This is the best film that I have seen.
4. 当形容词被the very, the only修饰时
(1) This is the very dictionar5. 当先行词前面有who, which等疑问代词时
(1) Who is the man that is standing there?
(2) Which is the T-shirt that fits me most?
6. 当先行词既有人，也有动物或者物体时
(1) Can you remember the scientist and his theory that we have lear只能用which
在介词后面的关系代词用which而不能用that。即“介词+which（代物）”
1.The picture for which he paid $1,000 was once owned by a duke.
【他花了1000美元买下的画曾为一名公爵所拥有。】
好了，我来讲。that既可以指人也可以指物，而which只能指物．一般情况下是可以通用的．但如果是非限定性定语从句的话只能用which． 基本上大部分能用which的都能用that，但是注意介词后不能用that，而which可以。
这里是一个动作，动名词，不是物品，应该是用that。

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首先 分析C that...so....是一个规定词组

定语从句

首先 分析C that...so....是一个规定词组
分析A which修饰某一个东西 修饰he的是who
分析B in which 没有这种词组