【题目】Many students_______from the new library since it was open to all.
A. benefited B. were benefited
C. have been benefited D. have benefited
在线课程【答案】D
【解析】
试题分析：句意：自从图书馆开馆以来许多学生从新的图书馆受益。benefit from因......而得益；因为since自从，它常与现在完成时连用，故排除AB；又因为主语many students与benefit之间是主动关系，故排除C，所以应选D。