The annual Christmas party last night was success. We sang and danced until it came to end

问题补充：

The annual Christmas party last night was success. We sang and danced until it came to end at 12∶30.

A. a；an

B. a；the

C. the；an

D. /；an

答案：

(答案→)A. a；an

B. a；the

C. the；an

D. /；an

解析：

试题分析:句意：昨晚的年度圣诞晚会很成功。我们唱歌、跳舞直到12：30晚会结束。固定短语come to an end “结束”，排除B选项；success 当“成功”讲是抽象名词，不与冠词连用；如果指“成功的人或成功的事”则是可数名词，此处指一个成功的圣诞晚会，故答案选A。