Is this factory__you visit a few months ago?yes,but it isn't___ it used to be.
问题描述：
Is this factory__you visit a few months ago?yes,but it isn't___ it used to be.
A the one; what B one; that
C that; the one D the one;the one
答案选哪一个,为什么?
答
原句可改成this factory is ____you visit a few months ago. yes,but it isn't___ it used to be.
前一句是表语从句,is 后面少了先行词 所以用the one 代替
后一句也是表语从句,少了宾语 用WHAT