主语从句中 that表什么 如 It is certain that he will win the match.

主语从句中 that表什么 如 It is certain that he will win the match. It is the second time that I have been to Beijing是主语从句吗?如题,It is the second time that I have been to Beijing.这个句子中It is ...time that 从句可以解释为主语从句吗?that 可以省略吗? that在什么从句中能做主语?什么从句中不能? 名词性从句是不是缺什么成分就是什么从句,缺主语就是主语从句.连词做主语 如THAT 主语从句不可由it代替主语从句中什么情况下it不能代替主语做形式主语 主语从句it is...that 中的that 主语从句连接词在从句中能充当什么成分?如What在主语从句中能充当主语等 It is the first time that I have met him.中that后的句子作什么成分?1是主语还是定语?整句话是主语从句吗?（本人始终不确定）2It is the first time I have met him.为什么that被省略了?什么时候能省that?3that换 在主语从句中that和what有什么不同 在宾语从句中,能用that作主语吗?还是必须用it作主语? it seem+that从句是主语从句还是表语从句 主语从句变简单句,急 .比如It happened that I was in that day it seems that 从句,中从句是做主语还是表语? 主语从句句型 It is no wonder that...从句中是否要用虚拟语气呢? 英语中表语从句,定语从句,主语从句,宾语从句有什么区别?如何区分?特别是表语从句 还有啊 老师说that不能引导主语从句啊,不能做主语,可是有很多题句首用that引导主语从句啊. 主语从句It + be + 形容词 + that从句:be用什么形式? if gods sees it fit that i should marry中 that引导什么从句 it was because i could speak English that i got the job是主语从句吗?