—Did you have a good time at the party?—Yes. We sang danced until late at night.A. butB.

问题补充：

—Did you have a good time at the party?

—Yes. We sang danced until late at night.

A. but

B. if

C. and

D. so

答案：

A. but

B. if

(答案→)C. and

D. so

解析：考查连词辨析。but“但是，”是并列连词，表转折; if“假如，如果”，引导条件状语从句; and“和，而且”，表示顺承或并列; so“所以”，表结果。句意 “—你们在聚会中过得好吗？—是的，我们又唱又跳直到深夜。”故选C。