题目内容：

This is the garden ___ we used to pretend ____ a concert would take place
A where that B that where C where where D that that

优质解答

B that、 where
第一个 that引导定语从句 并作从句中 used 的宾语
第二个where 引导的是宾语从句
This is the garden _that__ we used to pretend _where___ a concert would take place