单选题 It's the first time that she has been to the United States, ______ ?
  • A) isn' t she
  • B) hasn' t she
  • C) isn' t it
  • D) hash' t it


【正确答案】 C
【答案解析】[解析] 该句是反意疑问句，疑问部分应该就主句提问。