We should do which we can save those endangered animals.为啥用which不用what that呢?

what do you think ___ we should do with the poullted waterthat how which / We should do which we can save those endangered animals.为啥用which不用what that呢? 是we all should do 还是we should all do What do you think ___ we should do with the polluted water.A.that B./ C.how D.which what should we do today why should we do exercise? should we all do that? We should do friends forever (W )we go ,we should always remember we are Chinese The first thing ( )we should do is to tell him the news.A.who B.which C.that D.whom We should do -- we can -- those endangered animals,A that ,to save .B which save,C that ,save .D what ,to save,选什么呢,为什么啊. 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,