看两个例子：
prep16：Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil
, their descendents, popular known as killer bees had migrated as far north as Southern Texas。。。
85：In 1945, after a career as First Lady in which she shattered expectations more audaciously than either Abigail Adams or Dolly Madison ever had been, Eleanor Roosevelt was appointed a delegate to the United Nations General Assembly by President Harry S Truman.
Bmore audaciously than either Abigail Adams or Dolly Madison, President Harry S Truman had Eleanor Roosevelt appointed to be a delegate to the United Nations General Assembly.
D. with an audacity never mathed by Abigail Adams or Dolly Madison, Eleanor Roosevelt was appointed a delegate to the United Nations General Assembly by President Harry S Truman. 我的理解：after +n 究竟是否存在逻辑主语问题，要看前面的名词而定。 如16题，after 后面接了一个事件，句子主干再说这个事件之后的事情。主干的事情不一定是发出那个事件的人作的另一个事。
而且这里release 是action n，反而避免了after releasing 的逻辑主语问题。(这里可见 Manhattan的 v-a-n原则不是万能的哦)
85题：after +后面的名词明显是不完整的，缺少一个能和 那个n 对应的 发出者。这种情况下，要考虑after的逻辑主语问题。
总之：after +n后面的逻辑主语问题是句子逻辑意思而定。
一般来说，after +n 表达一个能够对很多人造成影响的的事件，而不是某个小土鸡作的鸡毛蒜皮的小事，一般after+n 是不需要动作发出者的。
好像有点抽象，举个例子：
(1)after 退休， 老王干了啥。。
(2)二战之后，老王干了啥。。
好像after就这两点比较烦，其他情况想起来再补充哈。。
以上对GMAT语法考试中的常见备考要点进行了较为详细的阐述，考生不妨以此为鉴，通过反复练习逐步掌握其在GAMT语法考试中的使用规律，从而在GMAT语法考试中发挥出更好的水平
