— How long has your brother been working in this factory?
— he graduated from college.
A. When
B. By the time
C. Until
D. Ever since
网友回答
A. When
B. By the time
C. Until
(答案→)D. Ever since
解析：考查连词辨析。A当…时；B到…时为止（与完成时连用）；until直到…才…；ever since自从…；句意：—你的兄弟在这个工厂里工作了多久了？—自从她大学毕业到现在一直都在这个工厂里工作。故D正确。