单选题 If the right first more on the puzzle above has you stumped, look in the back of this magazine under Creative Problem Solving.

【正确答案】 D

【答案解析】stumped“难倒的、困惑的”；bored“无趣的、无聊的”；angried“生气的、愤怒的”；sad“忧愁的、悲哀；confused“困惑的”。