单选题 A good storyteller must be able to hold his listeners' curiosity ______ he reaches the end of the story.
  • A. when
  • B. unless
  • C. after
  • D. until


【正确答案】 D
【答案解析】[解析] 句意为“一位优秀的故事讲述者一定能够在故事结束前让听众一直保持好奇心”，until意为“直到”。