单选题 There was plenty of time. She______.
  • [A] mustn't have hurried
  • [B] needn't have hurried
  • [C] mustn't hurry
  • [D] couldn't have hurried


【正确答案】 B
【答案解析】句子意思：还有很多时间，她本不必这么急的。注意“不必”不能用mustn't，要用needn't．