14.他們能打進大聯盟，證明台灣的棒球已達成熟的階段。 (A) That they can make it into the Major League Baseball proves that Taiwan’s baseball has matured. (B) Their able to get into the Major League Baseball proves that Taiwan’s baseball has matured. (C) They make into the Major League Baseball proves that Taiwan’s baseball has matured. (D) Get into the Major League Baseball proves that Taiwan’s baseball has matured.