英语从句套从句

完全可以，英语的语言规则是很严谨的，只要按照从句的规则写，不会出现理解上的问题。当然，套得越多，要顾及的地方就越多，对作者的要求就越高。从句嵌套的数量最好限制在三四个以内。无限套的话，那么说这句话就气绝了。下面给个例子，基本涵盖了从句的几种主要形式。I think that Finding a special perspective that judges the society, he, who is my brother, saw more than any other sociologist could see.这里，I think是主句，that后面全是宾语从句。Finding a special perspective that judges the society是状语从句，里面镶嵌了一个定语从句that judges the societyhe, who is my brother saw more than any other sociologist could see.是上面状语从句的主句，里面又镶嵌了一个定语从句who is my brother和另一个宾语从句more than any other sociologist could see。

有问题。改写如下：A big problem (that/which)man is facing and which has become more and more serious is that most people are swarming into cities.(that/which)man is facing and which has become more and more serious是以A big problem为先行词的被并列的两个定语从句，that most people are swarming into cities.是表语从句；全句主干部分为A big problem is that most people are swarming into cities.

理论上可以，只要语态和时态正确即可，虽然语法上没错误，但现实里为了便于理解一般不这样。

当然可以，从句就是为了写套句用的，但句套句，也只有中国搞出的英语考试里用，外国人根本不这么用。结构依然和最基本从句结构一样，说白了就是高中数学里大集合小集合的关系，很简单