the problem is that she's very shy.这是从句吗?什么从句?

the problem is that she's very shy.这是从句吗?什么从句? How to solve the problem is very important,这是主语从句吗 it is the first time that 是状语从句还是定语从句,that可省略吗? she said " who's that the man " 变定语从句 the cat is very cute that is Mimi 这句是什么从句? it is the first time that是主语从句吗 The girl is very shy等于什么 英语,有关从句The way she dealt with the problem is quite different That 引导什么从句：It is your fault that she is where she is! the fact is that和the fact that一样吗?前面是表语从句后面是同位语从句吗? IT seems that he is very tired.是主语从句还是表语从句 The truth is that 中的that引导什么从句