单选题 I don't think it's sensible of you to ______ your greater knowledge in front of the chairwoman, for it may well offend her.
A. show up B. show off C. show out D. show away

【正确答案】 B
【答案解析】[解析] 本题是说我认为你在女主席面前卖弄你的知识多是不明智的，因为这会冒犯她。B项的show off“炫耀，卖弄，使显眼”符合题意。