问题补充：
It was in the office my sister works I met the new manager.
A. that; that
B. where; where
C. that; where
D. where; that
答案：
A. that; that
B. where; where
C. that; where
(答案→)D. where; that
解析：本题考查强调句及定语从句
根据分析，本题的三个空划分出了三个句子，my sister works句意不完整，它与前方的office为修饰关系，因而用where，除去中间句子，剩下的句子为强调句，强调地点状语in the office
