1.there're still too many New Orleans folks who haven't been able to come home. So, while an incredible amount of progress has been made.

make progress前进,进步

例句：The disease makes rapid progress .
      病情迅速好转。

      The ship made slow progress through the rough sea.
      船只在汹涌的大海中缓慢前进。

2.I don't have to tell you that there's still too many vacant

still用法

still强调过去发生的事情及存在的状况目前还在延续。在现在完成时的否定句中，still表
示吃惊或不耐烦的语气；但在现在进行时中，still只表示动作正在持续，不带有感情色彩。例如：
My neighbour hit my car last week and he still hasn't apologised. 我的邻居上周撞了我的车，可他到现在还没有道歉呢。
He's still living with his mother. 他仍与母亲住在一起。
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