It happens that引导的是什么从句?

It happens that引导的是什么从句? see to it that中的it 是that后面引导的从句的形式主语吗? Jack has won the first prize,as it often happens.as 引导的是定语从句吗?如果是,它在从句中做什么成分? see u when anything happens again!that is it!I know!这句话是一个男孩写的, People take it for granted that ...that 引导的是同位语从句吧 what is it that you want me to say是that引导的什么从句 It is sad that... that引导的是什么从句? It seems that引导的是表语从句还是主语从句啊? it is true that是引导什么从句咯, It happens that I am free today.的同义句是什么?I (有四个空)today. That's the way it happens.这句是什么结构?it happens是什么成分 （It is ）no wonder that..引导的是什么从句? it looks that……造句it looks that……it appears that……it happens……分别造一个句子,要绝对正确的! rely on it that 能直接 on that吗?it that中that是引导同位语从句吗?可以直接on that 引导宾语从句吗? I find it hard to believe that+从句分析?这段话怎么分析啊,I和it哪个是主语?that 引导的是补语从句还是? 为什么用that,是that引导的什么句, do you have an email?it so happens that I 求It happens every day的中文歌词