请教Shanghai has changed so much that it is no longer _____ it used to be.
问题描述：
请教Shanghai has changed so much that it is no longer _____ it used to be.
that 和 what 选哪个呢?
为什么?是什么从句请解释下.
答
what.先来分析句子结构,that后是整个句子的从句,也就是说应该是一个完整的句子.no longer是副词短语,所以it is 后缺表语,空格连同“it uesd to be”一起作表语从句,同样,也应该是一个完整的句子.“be”后边缺宾语,wh...