It is +adj+ to do sth中It是形式主语吗?真正的主语是动词不定式to do st

问题描述:

It is +adj+ to do sth中It是形式主语吗?真正的主语是动词不定式to do st

同学,在这个句型中,it是做形式主语的,那真正的主语是to do不定式,有时这个句子中会加入for sb的情况.比如,举个例子:It is right (for Mary) to finish the homework.it 做形式主语,to finish the homework是真正的...