单选题People have found that walking is one of the best ways for a person to _____ healthy.AmaintainBreserveCpreserveDstay
单选题
People have found that walking is one of the best ways for a person to _____ healthy.
A
maintain
B
reserve
C
preserve
D
stay
参考解析
解析：
句意：人们发现步行是让一个人保持健康的最好方法之一。stay保持，停留。maintain维持，保持。reserve保存，保留，储存。preserve保护，防护，维护。四选项中，A，B，C均为及物动词，后面不能跟形容词，而D可以做系动词，后面跟形容词，构成系表结构。
句意：人们发现步行是让一个人保持健康的最好方法之一。stay保持，停留。maintain维持，保持。reserve保存，保留，储存。preserve保护，防护，维护。四选项中，A，B，C均为及物动词，后面不能跟形容词，而D可以做系动词，后面跟形容词，构成系表结构。
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