问题
选择题
Since the end of the war, many of the priceless antiques ______ to their rightful owners．
A．have returned
B．had returned
C．had been returned
D．have been returned
答案
Ｄ
题目分析：从时间状语Since the end of the war可以得知用现在完成时，而且antique与 return为被动关系，故用现在完成时的被动语态。句意：自从战争结束以来，许多无价的古董已归还失主。
点评：时态题的考查要注意关键词，本题的关键词是时间状语Since the end of the war！经常与现在完成时连用。ＢC都是与过去有关的时态，故排除。