The party last night was success. We sang and danced until it came to end at 12:00.A. a;

问题补充：

The party last night was success. We sang and danced until it came to end at 12:00.

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：考查冠词。第一空的success原本是抽象名词成功，这里变成了具体意义的一个成功的人，或者一件成功的事情，第二空固定词组come to an end结束；句意：昨天晚上的聚会很成功，我们唱歌跳舞直到12点才结束。故A正确。