It is diffcult for him to do it 真正的主语是TO DO IT那谓语是什么吖

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Itisdiffcultforhimtodoit真正的主语是TODOIT那谓语是什么吖Itisdiffcultforhimtodoit真正的主语是TODOIT那谓语是什么吖Itisdiffcultfo

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 is diffcult for him to do it 真正的主语是TO DO IT那谓语是什么吖

It is diffcult for him to do it 真正的主语是TO DO IT那谓语是什么吖
谓语是 is 表语 difficult

谓语是is

It is diffcult for him to do it
真正的主语是to do it动词不定式做主语,谓语:is diffcult (系动词+表语),系表结构作谓语;
it是形式主语。