第3题: [单项选择]For a limited time only, this exquisite collector's item will be offered at forty percent off of the original ______. A. price B. piece C. challenge D. certificate 参考答案:A 答案解析:[解析] 根据句中的“will be offered at forty percent off”可知此空应填入和价格有关的单词。故本题正确答案为A。