单选题 At the beginning he refused to take any responsibility but he had to end up by ______
  • A) to apologize
  • B) apologizing
  • C) apologized
  • D) apologize


【正确答案】 B
【答案解析】[译文] 起初他拒绝承担任何责任，但最终只好道歉。
[考点] 介词的用法
[解析] apologizing动名词作介词by的宾语，故选B。