it is one's duty to do sth.其中______是形式主语,真正的主语是______.

it is one's duty to do sth.其中______是形式主语,真正的主语是______. 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 it is/was adj.for sb to do sth.真正的主语是to do sth,sb是此句的宾语,又是to To obeythe laws is everyone's duty.改为用it作形式主语的句子 It is diffcult for him to do it 真正的主语是TO DO IT那谓语是什么吖 It's+adj.+for sb.+to do sth.是形式主语的一个句型,那么有没有It's+adj.+of sb. it takes sb some time to do sth是形式主语吗 it is all right to show we're sad.这里面it做形式主语,真正主语是后面的不定式,但是 it's one's duty to do sth.翻译 It must be terrible to be grown up!这是形式主语,真正的主语to be grown u 以it作形式主语,不定式作真正的主语,不定式to后面的动词可以是不及物动词吗? it'll be cheap to travel everywhere by plane的形式主语和真正主语是、 并且希