PREP 1-3

jackie32

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

请问 A 选项中 less than 引导的部分  之前不需要加介词吗 ？

[此贴子已经被作者于2007-10-17 12:07:49编辑过]

jackie32

ding

yinlixiao

B, D,E很容易排除。但是我选了C，我认为A需要加"In". 请大家指点，A是何种语法现象？