our hometown is quite different from before
问题描述：
our hometown is quite different from before
a that bwhat it was c which is was d when it was
答
B.what it was.
这句话的意思是“现在我们的家乡和之前的模样有很大的不同.”
from后面要接宾语从句,而宾语从句又是一个完整的结构,所以只 能由what领导,充当was 的表语