We must protect the environment英语作文，要求用被动语态，给几个句子

Dear headmasters, teachers, classmates and friends:

As we all know, the environment around us is getting worse and worse .In some places fish can't be seen swimming in the river . Some people even have no clean water to drink. So I think we must do something to protect the environment. But what can we do? How to protect our environment ?For example ,we can go to school on foot or by bike . We can use shopping baskets instead of plastic bags when we go shopping Also, we can use both sides of the paper when we write .In a word ,if everyone pays more attention to our environment ,there will be less pollution and our life will be better.

"There is only one earth.", I hope everyone will protect our environment well. Thanks!

our only hope is the earth which must be protected

we will definitely die if the earth is destroyed

our environment has been badly polluted.
something must be done to stop people from damaging our environment.
Those who dare to damage the environment must be punished by laws.
to protect the environment is the duty of the whole human beings.

我们必须