the environment is being sacrificed for economic development.这句为什么两个be动词啊?

there is __________m in ____word environment A.a,the B.an,the C.an,/ D/,/ what is environmentthe definition of the environment It is time to change the environment To pretect the environment is our dutyTo pretect the environment is our duty等于什么 The environment is all the things round us一般疑问句 The environment of the town is worse than before.=The environment of the town is not -----------------_________________before. What is wrong ------this picture?The environment------polluted.A.in.is B on,is C.with ,are D.at is请问第一个是否选with ,environment 什么情况下可数?什么情况又不可数? I think _____ care of the environment is very importantA.taking B.take C.takes D.took ( ),A friend of the Earth is someone who looks____the environment.A.for B.after C.at D.over 英语翻译Accordingto John Watson,behavior is governed primarily by a) heredity b) personal motives c)the environment d) unconscious desires ______ the environment is everyone's duty.A.Protect B.Protection C.Protecting D.save选择后写出原因 the environment is very polluted,so we must itA.look after B.look to C.look for D.look everyone is supposed to__the pollution of the environment.A.wipe out B.fight against C.take away D.set up The more civilized man has become,—— he is limited by the disadvantage of his environment.A the more B the less为什么选B. it is our duty to protect the environment. The more trees we plant,the______(good)our environment is. what is good for the environment不然看不懂 It is our duty to protect the environment