Thank you for the help which\that you have done for me.为什么 用 which\that 讲明help和从句关系
问题描述：
Thank you for the help which\that you have done for me.
为什么 用 which\that 讲明help和从句关系
答
这里的which或者that引导定语从句，help是定语从句的先行词。
这里的which或者that在从句里做名词成分，就代指help。
而意思上来说从句就是修饰解释help是怎么样的help的。
答
which\that you have done for me.这是一句定语从句来的,修饰先行词help.至引导词的选择是看从句的.you have done for me很明显缺少了宾语,而which\that都可以充当宾语的.你可以查看关于定语从句的语法