That is ______ we differ.
B
where在本句中引导表语从句。句意：这就是我们的不同之所在。
Shanghai is the place _______ I was born.
It’s___(reasonable)toexpectpeopletoworkmorethan60hoursaweek.
We all know about the_____ that smoking can do to our health.
Just a few years ago，Tanya was___(home)and begging for money in front of a supermarket in New York City.
FindingHarrietshouse______tobemoredifficultthanNickhadexpected.