【正文】
hadn’t eaten apples. It seemed to show that an apple a day or two apples really does keep the doctor away. scientists divided the class into ______. A. five groups B. two teams C. two groups D. three groups first group ate ______. A. two apples a day B. no apples C. three apples a day D. one apple a day story suggests that people should eat _______. A. pears B. bananas C. apples D. everything 4.“Keep the doctor away” means _______. A. not to make friends with the doctor B. not get sick C. keep the doctor from running