EXERCISE 3. MARK THE LETTER A, B, C, OR D TO INDICATE THE WORD(S) CLOS...

Question

25. The biggest cause of global warming is carbon dioxide emissions from coalburning power plants. A. fauna B. flora C. trees D. factories

Accepted Answer

A. PHẦN TRẮC NGHIỆM 1. A 11. D 21. B 31. D 41. B 51. C 61. A 71. D 81. B 2. C 12. C 22. A 32. D 42. C 52. D 62. B 72. B 82. C 3. D 13. B 23. B 33. C 43. D 53. C 63. C 73. C 83. C 4. B 14. A 24. C 34.....

EXERCISE 3. MARK THE LETTER A, B, C, OR D TO INDICATE THE WORD(S) CLOS...

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