... 31.A-Keeping personal hygiene and public health. B-Keep personal hygiene and public health. C-To keep personal hygiene and public health. D-Kept personal hygiene and public health. 32.A-Using solar ... If you follow these simple rules,no only will you reduce air pollution,but also the environment Will be cleaner. IV.Pick out the word whose bold part is pronounces difrentlly from those of ... energy instead of coal,gas and oil. B-Using solar energetic instead of coal,gas and oil. C-Using solar energtically instead of coal,gas and oil. D-Using solar energizer instead of coal,gas and...