单选题 At last the girl couldn't bear the self-reproach, so she decided to ______ the fraud that made the poor old lady no penny left.
A. show up B. show out C. show off D. show through

【正确答案】 A

【答案解析】(show up揭露，揭穿)。句意为：最后，那个女孩无法忍受自责，于是她决定揭露致使老太太身无分文的骗局。B．show out开门送某人出去；C．show off展览，卖弄；D． show through暴露，显露。