OG（紫）49 用形容词还是副词修饰？

49. 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.

A. its many problems had been the recent

B. its many problems has been the recently

C. its many problems is the recently

D. their many problems is the recent

E. their many problems had been the recent

答案是A。 我根据时态选对的。解释中说：its agrees with retailers; the past perfect had been indicates action prior to the simple past said; recent modifies extended sales slump.

我的问题是，如果我把A改成“its many problems had been the recently" 对吗？

个人认为recently extended sales slump 比较合理啊。为什么这里答案认为recently是修饰extended sales slump, 而不是extended呢？不理解～

请指教， 谢谢！

 a three-month liquidation sale和the recent extended sales是平行结构

还有recent是修饰sales的，不是修饰slump的

slump是one的谓语

1 slump在这里是名词，但也有动词的意思，这一点还请你亲自查字典。

2 extended在这里是形容词，修饰sales slump, 而不是你所认为的做动词。不然就是recent修饰动词就是错误的。解释也清楚的说，recent修饰extended sales slump。

3如果extented是动词，slump也是动词，那么句子结构错误；如果extented是形容词，slump是动词，但这里它确使用原型，证明它肯定是名词了；如果extended是动词，那么the recent=recently，实际上是没有这种用法。

4这个句子的结构是“主系表结构”，而不是“主谓宾”结构。

不知解释清楚没有？