问题补充：
I think eating more food can help you keep in good .
A. health, health
B. healthy, healthy
C. healthy, health
D. health, healthy
答案：
A. health, health
B. healthy, healthy
(答案→)C. healthy, health
D. health, healthy
解析：第一空选择的修饰名词的词，故选形容词healthy，而第二空为固定词组搭配keep in good health 意思为保持健康的意思，故选答案为C
