As we all know, the environment around us is getting worse and worse. Some chemical factories always pour{#blank#}1{#/blank#}(废弃的) water into the{#blank#}2{#/blank#}(河流). And they also{#blank#}3{#/blank#}(产生) terrible gas. In some places, some people even have no clean water to drink. So I think we must do something to protect the environment.

    How to protect the environment? First, as a student, we should use cloth bags instead of {#blank#}4{#/blank#}(塑料的) bags when we go shopping. {#blank#}5{#/blank#}(第二), we'd better reuse the old textbooks as possible as we can. Third, we should never forget to turn off the lights when we leave the classrooms. In a word, we must try our best to protect our environment. I believe we can make the world a better place to live in.