swimming helps to keep your heart and lungs ___(health) 横线上填什么?为什么?

问题描述:

swimming helps to keep your heart and lungs ___(health) 横线上填什么?为什么?

答案:healthy
keep 后跟形容词
不明白的再问哟,请及时采纳,多谢!这个句子还有什么语法点吗?动名词 swimming 做主语 还有个结构: help to do sth.