B. Buying C. cutting get more fresh air. III. WORD FORMATION Write the correct form of the words in brackets. 18. Fish and plants cannot grow well in this area because factories release toxic air and water. (POLLUTION) 19. People are using more and more 20. We should use more IV. ERROR RECOGNITION Find the underlined part that needs correction in each of the following questions. 21. Governments worldwide are working together to protect the environment for pollution. B C D A 22. My uncle is one of the best environmentalist in my country. A B C D D. moving opolutional -friendly products. products to reduce pollution. (RECYCLE) into the (ENVIRONMENT)