11. We ………….. from different kinds of pollution: water air, soil and noise. A. is suffering B. suffer C. are suffering D. had suffered 12. The babies ……….. when Alice came. A. has slept B. have slept C. is sleeping D. were sleeping 13. America …………. Thanksgiving Day on the fourth Thursday of November since 1864. A. celebrates B. has celebrated C. is celebrating D. celebrated 14. The fish died massively because the water is …………… A. damaged B. hotter C. contaminated D. poison 15. A natural disaster can cause loss of life or ………….. damage. A. property B. house C. home D. money 16. ……………. are severe winter storms characterized by heavy snow and strong winds. A. Droughts B. Blizzards C. Hailstorms D. Volcanic eruptions 17. The ……………. can be controlled by the stoppage of leakage from the radioactive materials including the nuclear reactors, industries and laboratories. A. light pollution B. visual pollution C. air pollution D. radioactive pollution 18. English is ………….. of Australia and Singapore. A. native language B. both A and C C. official language D. second language 19. Australia has the biggest ………… in the world. A. natural beauty B. puzzling games C. cattle station D. tallest building 20. ………………… could possibly be avoided by better construction, safety systems, early warning and planning. A. Earthquakes B. mudslide C. droughts D. forest fire Giúp mik với ạ hứa đánh giá 5 sao