What can we do with plastic bottles instead of throwing them away? A. Burn them B. Recycle them C. Hide them D. Throw them into the river

Bonuss

What should we say to invite our friends to protect the earth? A. Let’s keep our environment clean! B. Stop cleaning the room! C. Don’t recycle! D. Throw trash on the ground!

How can students show they love their world? A. Throwing trash into rivers. B. Wasting water and electricity. C. Cleaning and planting trees at school. D. Ignoring the environment.

What does “reuse” mean? A. Use something one time B. Use something again C. Buy something new D. Break something

What is the antonym of “clean”? A. Dirty B. Fresh C. Green D. Nice

What can happen if there are too many trees cut down? A. There will be floods B. The air will be fresh C. People will be rich D. The weather will be cool

What will happen if people keep littering? A. The environment will be clean B. The environment will be dirty C. People will be happy D. The air will be fresh

What should we do if we see someone littering? A. Join them. B. Ignore it. C. Politely remind them to use the trash bin. D. Laugh at them.

Why should we plant more trees? A. They make air dirty B. They make air clean C. They make noise D. They cause floods

What should we not do to the river? A. Throw rubbish into it B. Swim in it C. Look at it D. Drink the water

What can we do to reduce air pollution? A. Use public transportation or walk. B. Burn garbage every day. C. Use more plastic. D. Cut down trees.

What is the synonym of “dirty”? A. Clean B. Beautiful C. Unclean D. Fresh