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.
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
主语:None 以及其后的修饰部分
谓语动词:explains
不定式 to specify the causes of crime 修饰 attempts
这个句子是主谓结构,其主要框架是 None...explains--意思是 “所有的...都解释不通” 或者“没有能解释通的..."
题目分析:根据意思要用一个词汇来与前面的do not commit crimes进行对应,那当然应该用do了,选D。