Choose the best answer. 1 _______ A. less polluted B. more polluted C. less pollutedly D. more pollutedly 2 ________ A. more healthy B. healthier C. more healthily D. healthily 3 _________ A. longly B. longer C. shortly D. shorter 4 _______ A. more simple B. simpler C. simply D. more simply 5 _______ A. higher B. highly C. lower D. lowly 6 _______ A. more densely B. more dense C. less D. less dense 7 _______ A. more friendly B. friendlier C. friendly D. less friendly 8 _______ A. more suitable B. more suitbly C. less suitably D. suitably

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