填空题 The above is the most important aspect which apes can be told from more primitive social groupings.
  • A.The above
  • B. which
  • C.can be told
  • D.primitive


  • 1、
【正确答案】 1、B应改为in which。    
【答案解析】[解析] 因为which前面的先行词是aspect，所以应用介词＋which的结构。