POLLUTIONIII. 1. C 2. E 3. A 4. B 5. D A. PHONETICS

69. in

70. caused

71. rubbish/ garbage/…

72. collect

Task 3: 12. False 13. True 14. False 15. True 16. False 17. False

XII. 73. If my home installed a solar water heater, we would save a lot of energy.

VI. 1. English is an important global language.