单选题 I don't understand what you're getting so______. about. It's really not a problem.
A. worked out B. worked up C. worked over D. worked against

【正确答案】 B

【答案解析】[解析] worked out意为“被算出，据计算”，worked up意为“激动，愤怒”，worked over 意为“检查，研究”，worked against意为“违背，妨碍”。根据题意前后语气可知，正确答案为B。