He felt______duty to work for human rights and progress.A.it his B.nobody C.that is D.it is his

He felt______duty to work for human rights and progress.A.it his B.nobody C.that is D.it is his He felt______duty to work for human rights and progress.A.it his B.nobody C.that is D.it is his 请问这道题为什么选A不选D, He likes to walk he promised to He said to me he going to read he ()go to school me to he you to he good he seems to worried, He spoke English to everyone he m____ he never goes to school ,( )《do》 he? He think he has been to shanghai ,does he. He wanted to know the time______ he needed to know. He wanted to go to Beijing,didn't he? He like to do...还是He likes to do... 是he goes to swim还是he goes to swimming? he managed to teach himself everything he needed to