12. The Olympic Games helped to keep peace among the pugnacious states of the Greek world in that a sacred truce was proclaimed during the festival’s month. (A) world in that a sacred truce was proclaimed during the festival’s month (B) world, proclaiming a sacred truce during the festival’s month (C) world when they proclaimed a sacred truce for the festival month (D) world, for a sacred truce was proclaimed during the month of the festival (E) world by proclamation of a sacred truce that was for the month of the festival 答案C。 虽然前人讨论过,我选了B,B为什么不对?proclaim的动作发起者是The Olympic Games 吧? 对C答案还是理解不了。首先they 指代pugnacious states 吗?when 在此怎么讲? http://forum.chasedream.com/dispbbs.asp?BoardID=23&id=21352&replyID=152163&star=2&skin= 这个练习错了好多啊,哭死了