---How long has your brother been working here?
--- he graduated from college in 2007.
A. When
B. Until
C. Long before
D. Ever since
网友回答
A. When
B. Until
C. Long before
(答案→)D. Ever since
解析：上文意思是，你的哥哥来这里工作多久了？下文意思是从他2007年从大学毕业。When当……时候 Until知道 Long before 很久以前 Ever since 自从，故选D，最符合题意。