it is our duty to do

it is our duty to do it is our duty to distribute to the society翻译 it is our duty to protect the environment. It is our duty to protect the environment It is our duty to ＿（study） hard. It is our duty to keep the classroom c--------. It.is.our.duty.to.try.our.best.to.dealIt.is.our.duty.to.try.our.best.to.deal.with.the.challenges.with.the.help.of.our.teachers. It's on duty to keep our classroom clean 改为同义句_______ ________ our classroom clean is our duty. it is one’s duty to do sth句式仿写快 We thought it our duty to take care of the orphans. 为什么不用“We thought it is our duty”呢? It is our duty to try our best during the time It is our duty to keep our e___ clean and tidy We ought to protect environment. It's our duty to do that. 翻译 we think it our duty to help others为什么不加IS啊we think it is our duty to help others 翻译：It is our duty to try our best to deal with each challenge .It is our duty to try our best to deal with each challenge in our education with the help of our teacher. It is our duty to keep our classroom clean and tidy.中的It《our duty 》和 clean and tidy是什么成分 it is over duty to master it to,is,our,it,duty,protect,environment,the,连词成句