Many companies deal with their female employees in a way that undervalues them.
请问：
1 先行词是way，that是定语从句，请问that是关系代词，不是关系副词？由于这里做主语
2 that做主语不可省略，那样能否用“in which”代替“that”做主语？
Many companies deal with their female employees in a way in which undervalues them. 这个句子正不正确？
这个定语从句中that是关系代词，在从句中做主语。in which是介词短语，如何能在从句中作主语呢？不能的！
