She didn"t think___she did wrong that day. 为什么是what而不是 that?

She didn"t think___she did wrong that day. 为什么是what而不是 that?
She didn"t think___she did wrong that day. 为什么是what而不是 that?

She didn"t think___she did wrong that day. 为什么是what而不是 that?
此处用 what 引导宾语从句
that 引导从句时不能作句子成分
然而此处 do sth wrong 中的sth在句子中必须由 what 引导

本句是一个宾语从句，that 指代she did wrong that day。

横线后面句子不完整，缺成分，所以用What ，that 用于完整的从句。

题目问的应该是 她不认为她那天做错了什么，所以，不用that来带一个分句后置

因为这里的what是做did的宾语，what引导一个宾语从句，这个宾语从句充当think的宾语。

what指她做的事

宾语从句，do sth wrong what指代宾语