三道语法，谢谢

ll-lotus

95. Studies of the human "sleep-wake cycle" have practical relevance for matters ranging from duty
     assignments in nuclear submarines and air-traffic control towers to the staff of shirts in 24-hour
     factories. ;
   (A) to the staff of
   (B) to those who staff
   (C) to the staffing of
   (D) and staffing
   ©and the staff of
[The answer is C, but I think A is better]

96. Many psychologists and sociologists now contend that the deliberate and even brutal aggression
     integral to some forms of competitive athletics increase the likelihood of imitative violence that
     erupts among crowds of spectators dominated by young adult males.
   (A) increase the likelihood of imitative violence that erupts
   (B) increase the likelihood that there will be an eruption of imitative violence
   (C) increase the likelihood of imitative violence erupting
   (D) increases the likelihood for imitative violence to erupt
   (E) increases the likelihood that imitative violence will erupt
[increases对应的主语是什么，怎么觉得应为increase]

100. According to scientists at the University of California, the pattern of changes that have occurred in
     human DNA over the millennia indicate the possibility that everyone alive today might be
     descended from a single female ancestor who lived in Africa sometime between 140,000 and
     280,000 years ago.
   (A) indicate the possibility that everyone alive today might be descended from a single female
        ancestor who
   (B) indicate that everyone alive today might possibly be a descendant of a single female ancestor who
        had
  (C) may indicate that everyone alive today has descended from a single female ancestor who had
  (D) indicates that everyone alive today may be a descendant of a single female ancestor who
  (E) indicates that everyone alive today might be a descendant from a single female ancestor who

see_who

或许我可以回答您的问题。
95、range from A to B, 从语法来看，选项A也正确，但逻辑意义不通。duty assignments（值班安排）应与the staffing （人员安排）对应。
96、主语使aggression,单数
100、主语是the pattern of，单数，therefore, 应选indicates；may be 没必要使用过去时；同时，a descendant of 固定搭配。综上所述，选d

Louisa_xy

95.rage from duty assignments...to the staffing
从任务分配到人员安排。  staff人员，不能和duty assignments平行

96. 主语是deliberate and even brutal aggression--aggression  单数

100. D
  pattern是主语，谓语动词用单数indicates，descentdant of...谁的后代
C who had 时态不对