题目

They planned to hold a grand party to ______ their parents' diamond wedding anniversary as a reward for bringing them up. A. congratulate           B. memorize        C. observe          D. guarantee 答案：C小惠的牡丹卡上还有余款250元。小惠想买一件衬衣和一件连衣裙，衬衣价格为80元／件，连衣裙价格为180元／件。小惠用牡丹卡购买这两件物品会不会透支？A.会B.不会C.无法判断