问答题 There must have been a special sale on eggs that day because there was an impressive display of eggs in dozen and half—dozen cartons.

【正确答案】由于有一打和半打装着鸡蛋的箱子在柜台上展示，所以那家商店哪天一定有一个鸡蛋的大减价。
【答案解析】