Choose a word that has different stressed syllable from others. 1. A. reply                    B. greener                     C. picnic                      D. people 2. A. warning               B. because                    C. better                       D. cleaner 3. A. meaning              B. product                    C. belong                     D. column 4. A. combine              B. unique                      C. become                     D. number 5. A. student                B. below                        C. money                     D. airport 6. A. plastic                B. carbon                     C. Today                      D. picnic 7. A. manage               B. reduce                     C. combine                   D. explain 8. A. symbol               B. dolphin                    C. product                    D. instead 9. A. recycle                B. describe                   C. borrow                    D. become 10. A. doctor                B. exchange                  C. onion                       D. forest 11. A. pollution            B. energy                     C. plastic                     D. atmosphere 12. A. garbage              B. rubbish                    C. paper                       D. material 13. A. environment      B. transport                  C. protection                D. pollution 14. A. reusable             B. recyclable                C. dangerous                D. polluted 15. A. deforestation       B. disappearance          C. electricity                D. conservationist 16. A. reduce                B. reuse                       C. traffic                      D. effect 17. A. prepare               B. watseful                   C. reusable                   D. recycle 18. A. pollution             B. deforestation            C. environment            D. material 19. A. president            B. effect                       C. exchange                 D. pollution 20. A. charity                B. disappear                 C. energy                     D. natural Giúp Mình với, mình cảm ơn ><