单选题 My English-Chinese dictionary has disappeared. Who ______ have taken it?
  • [A] should
  • [B] must
  • [C] could
  • [D] would


【正确答案】 C
【答案解析】[精解] could have taken表示对过去情况的推断，指可能是谁把它拿走了。should have done表示本来应该做而没有做；must have done表示(过去)一定那样做了；would have done常用于表示虚拟语气。根据题意，应选C项。