He felt it his duty to mention the fact to Mr.Black.句中it后面是否应加is?为什么?

He felt it his duty to.为什么不是He felt it is his duty to . He felt ______ to work for human rights and progress.A.it his duty B.his duty C.that is a duty D.that is his duty he felt ( ) to work for human rights and progress.选哪项A：it his duty B:his dutyC:that's a duty D:that is his duty 1：He felt ___to work for the world peace.A.it his duty B.his duty C.that is his duty D.that is a duty2：这些苹果你们五个人分着吃 翻译：Divide the apples ______. 2.He felt it his duty to help others 2.They thought it no good doing that.请问这两句的宾语补足语和真实宾语是哪个, He felt that working for human rights and progress is his duty.用it结构改写.最好也写上it改写结构的其他用法. He felt it his duty to mention the fact to Mr.Black.句中it后面是否应加is?为什么? 〓英语〓一道关于简单句与it的用法的选择题〓小诺求助〓He felt _______ to work for human rights and progress.A.it his duty B.his duty C.that is a duty D.that it his duty 非谓语动词做复合宾语问题He feels it his duty to help the poorhis duty 是什么成分 He feels＿to help others.答案是“it his duty”,为什么还要加it? He thinks it his duty to help the poor里面为什么用it? The scientist felt ___to work for human right and progress.his duty it his duty that is a duty thaThe scientist felt ___to work for human right and progress.his dutyit his dutythat is a dutythat is his duty__these very novels that my sister enjoyed r Tom went into his house t__ the window because he felt the keys in it. He felt ___(happy)during his holiday. He deemed it his duty to help others.对此句进行语法分析,各部分都作什么成分 he feels it his duty to help to help others哪个是句子的宾语?his dutu?还是 to help others? it做形式宾语的疑问．We think it our duty to clean our classroom every day.可以说成We think it's our duty to clean our classroom every day.为什么对于其他it做形式宾语的句子呢?比如He felt it important learning English well Mark thinks that it his duty to settle语法对吗