is this flat ___ you once lived in

题目

is this flat ___ you once lived in
为什么填the one?
和 Is this the flat which/ that you once lived in 有什么区别?

答案

第一个当中缺表语.因此填 the one.可翻译成“这个公寓是你曾经住过的那个公寓吗?”
而第二个当中表语就是the flat.可翻译成“这就是你曾经住过的那个公寓吗?”