单选题 The wood was so rotten that, when we pulled, it ______ into fragments.
  • A. broke away
  • B. broke off
  • C. broke up
  • D. broke through
【正确答案】 C
【答案解析】[解析] 本题中break away突然逃脱，挣脱；break off折断；break up毁坏，(使)成碎片；break through突破，突围。根据句中表示因果关系的so that，所填短语和rotten(腐烂的)相关，应选C。句意是：这块木头烂到如此地步，以至于我们一拽它就成了碎片。