关于what引导的从句的问题
问题描述：
关于what引导的从句的问题
(what) successful candidate must possess is expertise in the required area,and a
这里为什么不能是whether呢?
答
(what) successful candidate must possess is expertise in the required area (what) successful candidate must possess 是主语从句,在主句中是主语.is expertise 是谓语结构.原句的意思：成功候选人必须掌握的是...