she never agree to do what her mother

题目

she never agree to do what her mother
she never agree to do what her mother asks her to
为什么to 后面不加do?what等于the things that吗?什么情况下等同?

答案

第一,what引导的是宾语从句,你可以换为 the things that 引导的定语从句
你可以更改为：
he never agree to do the things that her mother asks her to 【这个是定语从句,the things是主句的宾语,也就是从句that的先行词,】
第二,her mother asks her to 【do省略了,和前边的do是重复的】
即：
she never agree to do what her mother asks her to do
从句中what 做的是宾语
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