强调句型和形式主语could it be in the valley in which we had a picnic that you left behind your keys and wallet?后面that引导的是强调句型还是形式主语?怎么区分?

强调句型和形式主语could it be in the valley in which we had a picnic that you left behind your keys and wallet?后面that引导的是强调句型还是形式主语?怎么区分? 形式主语和强调句式的区别?It is.that.可以是强调句型的形式,但也有可能是形式主语的形式,那么请问,怎样一看到这样的句型就能区分出来是强调句型,还是形式主语那?他们的本质区别是什么? it 怎么最简单判断 他是形式主语还是强调句型 it作形式主语的问题it 作形式主语的句型是 it + be动词,还是it + 谓语动词? 强调句it be that与主语从句中it形式主语区别主语从句that the driver could not control his car is obvious=it is obvious that the driver could not control his car.强调句it is i who/that am wrong it is.that.句型的含义该句型的含义是否就是如下2种：1.强调句2.主语从句,以it为形式主语. 强调句和形式主语IT引导的主语从句的区别 it 作形式主语的固定句型 形式主语和强调句的区别? 主语从句用It+be+.+that从句的几种用法?It+be+形容词+that引导的从句 举一句子 It+be+名词+that引导的从句 举一句子 It+be+过去分词+that引导的从句 举2句子 It is .that.以这形式的强调句型举两句子 That could be a good way to help.为什么不用It,那不是形式主语吗 there be句型和it做形式主语形成的主语从句区别there is no doubt that...可不可以写成it is no doubt that...形成主语从句呢?就是说一般情况下there be的从句可不可以用it做形式主语形成的主语从句担任 it can be he that has taken my pen 三个简单的句型请教下a.It can be he that has taken my pen. 这个强调句如何更改为陈述句?b.It can be that he has taken my pen 做了更改这句语法是否还正确?IT是否为形式主语?c.It w it 作形式主语和形式宾语的句型及其句型,解释得好还可以增加赏金. 强调句与it作形式主语的区别 it was so easy a question that everyone could answer it.怎么判断是强调句 还是从句做形式主语呢 强调句型有it's ... where/when这种形式吗? 请英语好的朋友帮帮忙,帮我用2个语法造句子,it用作形式主语强调句型（造三个句子）