2. 外语
  3. ______ three times in a row, the boxer decided to give up fighting.

______ three times in a row, the boxer decided to give up fighting.

admin2010-12-06  51
问题 ______ three times in a row, the boxer decided to give up fighting.
选项 A、Because having been defeated
B、Because being defeated
C、Having been defeated
D、Having defeated
答案C
解析 分词短语在句中做原因状语，并且动作发生在谓语动词decided这一动作之前，因此需用完成时态，根据句意，拳击手是连续三次被击败，故需用被动结构，选项C正确。
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