语法区没人耶，谁能帮我解释一下这道语法呀，非常感谢！

小鱼good · 发表于 2010-3-30 16:02:17

Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil, their descendants, popularly known as killer bees, had migrated as far north as southern Texas.

(A) Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil,
(B) In less than 35 years since releasing African honeybees outside Sao Paulo, Brazil,
(C) In less than the 35 years since African honeybees had been released outside Sao Paulo, Brazil,
(D) It took less than 35 years from the release of African honeybees outside Sao Paulo, Brazil, when
(E) It took less than the 35 years after the time that African honeybees were released outside Sao Paulo, Brazil, and then
为什么选A呢

冷咖啡 · 发表于 2010-3-30 16:59:32

(B) In less than 35 years since releasing African honeybees outside Sao Paulo, Brazil,
~~~in 多于， ~~~~~~~~~~~since要接句子或者时间，不能接doing，没这用法。而且since出现多用现在完成时
(C) In less than the 35 years since African honeybees had been released outside Sao Paulo, Brazil,
同上，注意后面没画线的时态
(D) It took less than 35 years from the release of African honeybees outside Sao Paulo, Brazil, when
~~~~~~~~变成主句了，改变了原来句子中心意思，原来是说bee的migrate怎么怎么样，现在成了强调花了35年
(E) It took less than the 35 years after the time that African honeybees were released outside Sao Paulo, Brazil, and then

ghgriffin · 发表于 2010-3-30 22:43:38

DE, It 没有指代对象
B 中since releasing 中的releasing 逻辑主语不对
C 中 35years 前加了the，是说以前提到过的特定的35年，显然不合适

至于in less than 有没有问题我没有想清楚，C中的时态问题有人讨论过，但是也没说清楚，你自己琢磨吧

语法区没人耶，谁能帮我解释一下这道语法呀，非常感谢！

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