Find the word which has a different sound in the underlined part. 1. A. stand B. apple C. hand D. father 2. A. dark B. cancel C. action D. travel 3. A. fantastic B. part C. fact D. camera 4. A. automatic B. had C. activity D. yard 5. A. calm B. bag C. cat D. bad Find the word which does not belong to each group. 6. A. bag B. metal C. glass D. plastic 7. A. garbage B. litter C. rubbish D. floods 8 A. reusable B. recycled C. repair D. refillable 9 A. bin B. paper C. bag D. bottle 10. A. reuse B. reduce C. repeat D. recycle Choose the best options to complete the following sentences. 11. If we____________ waste paper, we will save a lot of trees. A. Repeat B. Recycle C. Rewrite D. Remark 12. You can save money while shopping by only buying__________ you need. A. What B. This C. It D. That 13. What can we do__________ air pollution? A. Reduce B. To reduce C. Reducing D. To reducing 14. Why do you often forget to __________ the lights when you go out of the classroom? A. Turn on B. Turn off C. Close D. Shut down 15. If we plant more trees in the schoolyard, the school will become a______place. A. Darker B. Greener C. Dirtier D. More polluted 16. Do you think we should put a____________ bin in every classroom in order to keep it clean? A. Reusable B. Recycled C. Recycling D. Recyclable 17. My brother and I will give last year’s clothes to__________ instead of throwing them away. A. Shop B. People C. Charity D. Survey 18. Next week our class is having a discussion about finding__________ ways to reuse old items before throwing them away. A. Interested B. Surprising C. Useless D. Creative 19. It is a good idea to____________ our clothes with our friends or cousins. A. change B. swap C. turn D. send 20. If people turn off all electric appliances in one hour all over the world, they can save lots of______. A. electric B. electrical C. electrician D. electricity