宾语从句中的what和thatThe old woman was shocked by what had happened to her daughter.这句话中what可不可以用that代为什么

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宾语从句中的what和thatThe old woman was shocked by what had happened to her daughter.这句话中what可不可以用that代为什么

宾语从句中的what和thatThe old woman was shocked by what had happened to her daughter.这句话中what可不可以用that代为什么
宾语从句中的what和that
The old woman was shocked by what had happened to her daughter.
这句话中what可不可以用that代
为什么

宾语从句中的what和thatThe old woman was shocked by what had happened to her daughter.这句话中what可不可以用that代为什么
首先:
what happened 发生了什么事
并没有that hanpened 说法
其次:
很简单,如果能去掉这个引导词而不影响句子意思的,就用that;否则就用其他的.因为在宾语从句中that是没有实际意义的,而what,which,where等要保留他们的意义.
what=the thing that
that前需要有一个先行名词.
what 前不能有 ,但是可以有介词
如,the reason lies in what he has said.
可以说成i should do the thing that i can