we should do everything we can to protect the environment.这是什么句子啊?can后怎么接to

是we all should do 还是we should all do what should we do today why should we do exercise? should we all do that? We should do friends forever the question is ___ do first.Awht should we Bwhat we should Cthat should we Dwhy should we We should ---------- what to do next .(consideration) We should -------(do) our homework now. What should we do before meals? 英语作文题目should we do housework? We should do more and t____less we do should what句子排序, what should we do?的回答 We should do something more (i ) we should do good that benifits others. why should we do exercise英语作文 What should we do to prevent AIDS? We should try to do everything___________ourselves.