they are doing exercises to improve their空.

题目

they are doing exercises to improve their空.
body
fitness
healthy
situation
答案选fitness
他们的区别？

答案

首先排除healthy,因为是形容词；
其次situation词不达意,排除；
fitness可以翻译成“体质”或“健康状况”,body是指身体,两个相比,肯定是fitness合适.
另外,如果有health选项,应该也是正确的.