We must protect our earth well.（改为被动语态） Our earth must___ ___by us well.

We must protect our earth well.（改为被动语态） Our earth must___ ___by us well. We must do something to protect our environment.We should use these bags（ ） plastic bags. we must do what we can to protect our environment什么意思 We must protect our environment well.A.Yeb,I agree.B.I do we must stop doing something to protect our earth同义句 We must protect our e_____ in order tolive a healthy life. we must protect ourselves （w） ·句子转换We must do something to protect our earth from being pollutedWe must ___ ___to ____ our earth from being polluted 根据上下文及首字母提示补全单词The e—— is our home ,so we must protect it We should help __ (protect) our nature. we must keep our classroom( ). we must ( ) our school nuiforms ( The pandas are e____ animals.We must protect them. 题目在题干里,请讲解以下原因（ ）are our friends.We must protect them.A.Aminal B.An animalC.The animals D.Animal 到底要不要加“s”呢?natural resource/resources,到底哪个正确呀?这个句子：We must take measures to protect our limited natural _______. we must pay attention to protecting our environment.这里的protect为什么要用ing形式?还有一题：In the past,she always controled her weight.这里的protect为什么用过去式,前面不是有一个always吗? The p__ Earth is our home.We should protect it. what should we do to protect our environment?