问题
选择题
Many students_______ from the new library since it was open to all.
A．benefited
B．were benefited
C．have been benefited
D．have benefited
答案
D
题目分析：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。
考点：