一道时态的题！救助！！！

wellmichelle

Devastated by the catastrophic plane crash, the residents of Cook County accused the Federal Aviation Administration of failing to warn the pilots that the area was experiencing deadly wind shears during the prior weeks.
A.was experiencing deadly wind shears
B.has experienced deadly wind shears
C.experienced deadly wind shears
D.has been experiencing deadly wind shears
E.had been experiencing deadly wind shears


这道题选E，为什么要用过去完成进行时？用过去进行不行吗？

sisichen666

看到during the prior weeks确定用完成时态，在看到原句的accused过去时，根据句意accused在先，所以在后面的从句中应用过去完成时来表示在说话先前的几个星期就已经完成的动作。

圆圆大芒果

原句主句是过去时，然后从句根据语义应该是完成时，保持原来的进行含义。