885 Section 14 #17 求助！！

iselibra

None of the attempts to specify the causes of crime explains why most of the people exposed to the alleged causes do not commit crimes and, conversely, why so many of those not so exposed have.
(A) have
(B) has
(C) shall
(D) do
(E) could
D.不理解为什么要补出一个do
请教各位高手

braveMBA

why most of the people exposed to the alleged causes do not commit crimes and, conversely, why so many of those not so exposed do

两个WHY从句之间的平行对称比较。exposed和not so exposed分别做分词修饰两类people。

iselibra

明白了
3x