He felt it his duty to.为什么不是He felt it is his duty to .
2.He felt it his duty to help others 2.They thought it no go
1:He felt ___to work for the world peace.A.it his duty B.his
he feels it his duty to help to help others
He deemed it his duty to help others.
He thought it his duty to go through the papers
He thinks it his duty to help the sick.
He thinks it his duty to help the poor里面为什么用it?
He ___ thought it was his duty to tell me the fact.
He felt it a great honour ---to visit me when I was in his c
he felt sad very much -------his failing to pass
it is over duty to master it
He felt his arm ___.