1. (2020六上·兴化期末) 选择合适的选项完成句子

A. protect the Earth     B. wrote letters     C. on the Internet     D. clean things E. on 5th June     F. out of the window     G. Too much     H. make friends

1. （1） We use water to .
3. （2） World Environment Day is .
5. （3） Today e-shopping is very popular. People like to do shopping .
7. （4） Many years ago, we to our friends.
9. （5） We can save trees and energy to .
11. （6） Don't throw rubbish .
13. （7） plastic is bad for the Earth.
15. （8） We can from all over the world.