save ,the,we,trees ,must,ivory,made of,thingssave ,the,we,trees ,must,ivory,made of,things,not ,buy,and（连词成句）

we must save the trees and not buy things made of ivory we must save the trees and not buy things made of ivory意思 save ,the,we,trees ,must,ivory,made of,thingssave ,the,we,trees ,must,ivory,made of,things,not ,buy,and（连词成句） save trees的意思save trees翻译 句型：We must save the trees and not buy things made of ivory.为什么buy前用了not,而不是don‘t ,made用过去式? not,we,must,made,save,of,trees,and,things,buy,ivory连词成句 反义疑问句习题We must save the Earth.We must save the Earth,______,_______? 改反意疑问句We must save the Earth.We must save the Earth,___ ___? we can w( ) the flowers and trees We Came Down From The Trees 歌词 we watered the trees.英语一般疑问句 We walk with our ()(foot)用括号内所给名词的正确形式填空9.We'd better use fewer paper ()(bag)to save the trees on Earth.10.How many ()(box) of oranges do you want to buy? we must save the ___________animals in the world（danger） Must we cut down the trees? No.we ____. 英语画线部分提问 We should save water to save the Earth中画线部分是save water we will do what we can ( ) the sick boy Awe will do what we can ( ) the sick boyA.save B.to save C.save D.saving We can save our earth_____more trees.A.to plant B.by planting C.by plant D.to planting What should we do to save the earth?是什么时态