Ex 5. Use the correct form of the words given to complete the sentences. 1. This volcano is dead, it has been (act) ……………. for more than a century. 2. The Earth would be a happy planet if human beings, animals and plants (peace) ……………. co-existed. 3. The US is the world’s largest economy, benefiting from an abundance of natural resources and high worker (produce) ……………. 4. The chemical (pollute) …………….from cars and factories make the air, water and soil dangerously dirty. 5. You cannot imagine how (serious) …………….the area was damaged by the flood. Ex 6 . Read the passage and choose the correct answer to fill in the blanks. On 11 March 2011, Japan suffered the (1) …… earthquake in its history. The 2011 Tohoku earthquake measured 9.0 on the moment magnitude scale and produced (2) …… tsunami approximately 10 meters (3) …… Despite the warning systems, thousands (4) …… killed by the quake and tsunami. Over 100,000 buildings were (5) …… with several towns completely destroyed. The tsunami (6) ……nuclear accidents, and the associated (7) …… zones affecting hundreds of thousands of residents. Many electrical generators were taken down, and at (8) …… three nuclear reactors suffered explosions. (9) …… within a 20 km radius of the Fukushima Daiichi Nuclear Power Plant and a 10km radius of the Fukushima Daini Nuclear Power Plant were (10) …… 1. A. strong B. strongest C. stronger D. strength 2. A. a B. an C. the D. no article 3. A. height B. higher C. high D. highten 4. A. was B. were C. had D. have 5. A. constructed B. supplied C. damaged D. injured 6. A. made B. had C. led D. caused 7. A. evacuation B. reaction C. eruption D. shelter 8. A. most B. least C. less D. fewest 9. A. Employers B. Managers C. Workers D. Residents