he felt ( ) to work for human rights and progress.
问题描述:
he felt ( ) to work for human rights and progress.
选哪项
A:it his duty B:his duty
C:that's a duty D:that is his duty
答
是A!我原文都找到了!如果是D,应该说He felt that it is his duty!少了it!够详细吧!