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.
have
has
shall
do
could
登录 或 注册 后可以参加讨论
and表明前后平行，注意找前半句的谓语动词，后面的谓语动词要与前面那个谓语动词平行
扫描二维码，直接登录
and表明前后平行，注意找前半句的谓语动词，后面的谓语动词要与前面那个谓语动词平行
登录 或 注册 后可以参加讨论