It’s our duty ______the environment. [   &nbs

it's our duty to protect our environment/是什么意思请问 It’s really cold today, ______ ?    &nbs it's our duty to help ____(protect)the environment 1.It's our duty _______ the environment 小题1:That’s an        &nbs                 &nbs     (  )4(  )   &nbs ―I think it’s too late to apologize to Kate.  &nbs The      government  &nbs I think it's our duty to keep our environment clean and tidy 我们有责任不污染环境It's our duty ()()()our environment Lucy likes playing        &nbs