it's our duty to fight___this kind of terrible disease.

it's our duty to fight___this kind of terrible disease. It was really___hard work to fight this kind of disease It's our duty to take good care of our ________(环境).主要是要不要用复 It's our duty to make our city much_____ it's our duty to protect our environment/是什么意思请问 It's our duty to keep the balance of （n ）以n开头的词 it's our duty to help ____(protect)the environment it's our duty ti distribute to the society It's our duty to ____ _____ _______（保护环境） It's reported that a terrible rainstorm hit____south of our It's very kind of you if you need to come and visit our coun it is said that this kind of tofu smells terrible.that's tru