Reporting that one of its many problems had been the recent extended sales slump in women's apparel, the seven-store retailer said it would start a three-month liquidation sale in all of its stores.
我想请问一下这个句子的前面的状语从句了的“had been” 是什么用法,按我的理解sales slump 就是这个从句里的主谓,那前面的到底是什么东西?
请高手指点,谢谢
-- by 会员 ylj3618 (2011/6/27 12:52:48)