I am grateful for all -----you have done for me.what taht 还是

问题描述:

I am grateful for all _____you have done for me.what taht 还是which为什么
1个回答 分类:英语 2014-11-30

问题解答:

我来补答
填that. that引导定语从句,修饰all, that也可省略.what只能引导名词从句,不能引导定语从句.若用what, 应去掉all,这时what就成了宾语从句.
 
 
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