do one's duty 与 fulfill one's duty的区别

be on one's duty的意思 it's one's duty to do sth.翻译 lt's one's duty to do sth 如何造句 Everyone must do one's duty.还是Everyone must do his duty. 每天做作业是我们的责任（it's one' duty to do) 翻译take over one’s duty,carry out one’s duty 句子成分 it not a pen one must do one's duty 1.Everyone should do _ duty.A.one's B.his C.everyone's D.the it is one's duty to do sth.其中______是形式主语,真正的主语是______. it is one’s duty to do sth句式仿写 固定结构中例如often see sb.do sth、It's one's duty to do sth.如果跟第三人称 do one's homework与do homework的意思区别?特别是那个one‘s