17) ____ three times in a row, the boxer decide to give up fighting. 　　 A)shavingsdefeated B) To have defeate 　 　C)having been defeated D) To have been defeated

熱心網友

17) ____ three times in a row, the boxer decide to give up fighting. 　　 A)shavingsdefeated B) To have defeate 　 　C)having been defeated D) To have been defeated 答案為 C,句子的意思是：這位拳擊手被擊敗三次后，決定放棄比賽。此題考察的是現在分詞的完成被動式做原因狀語。拳擊手和擊敗是被動關系，且“被擊敗”這一動作發生在“放棄”前，故選 C.

熱心網友

C)having been defeated

熱心網友

D) 首先確定是在一個回合里被打了三次 所以用被動語態，應該是完成形式……