单选题 In those days she was always lost in thought, so that she had to be called three or four times ______ she came to her dinner.
  • [A] until
  • [B] after
  • [C] when
  • [D] before


【正确答案】 D
【答案解析】[解析] 本题考查从句中连词的选择。until意为“直到…才…”； after意为“在…之后”；when意为“当…时候”；before意为“在…之前”。