it is my duty 后加什么

it is my duty 后加什么 It is time for后加什么 It is our duty out environment?问好填什么 ① I think it my duty to do sth.和 i think it IS my duty to do sth.之间有什么区别?②第二句是复合句吗? 英语形式主语it’s my duty that we…...我想问的是 是否形势主语后一定加that? My duty is to my heart翻译 it is over duty to master it 连词成句 turn it to is duty on my today be we think it our duty to help others为什么不加IS啊we think it is our duty to help others It is my duty to keep my classroom clean and tidy it 是形式宾语还是形式主语 my duty is----------(set)up the stage it is said that后加什么时态 it is said that后加什么词 I feel it is great pieasure后加什么形式 it is not use后加什么形式? today is on my duty.thank you for you,i will try my best to do it啥意思 whose turn is it ( ) on duty today it is our duty to do