The party was success. We sang and danced until it came to end at midnight.A. a; anB. a;

问题补充：

The party was success. We sang and danced until it came to end at midnight.

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：success和end都是可数名词，应用不定冠词，end词首音素为元音，故选A。