D. We need calories or energy to do things everyday. Eat/healthy/ be/ important / part / maintain / good/health. A. Eat healthily is an important part to maintain good health. B. Eat healthily is an important part to maintain good health. C. Eating healthily is an important part to maintain good health. D. Eating healthily is a important part to maintain good health. 4. Eat/less/sweet/food/ and / eat/more/ fruit / vegetables. A. Eating less sweet food and eat more fruits and vegetables. B. Eating less sweet food and eating more fruits and vegetables. C. Eating less sweet food and to eat more fruits and vegetables. D. Eat less sweet food and eat more fruits and vegetables. 5. Calories / important /human/health. A. Calories are important for human health. B. Calories is important for human health. C. Calories are important with human health. D. Calories is important with human health