问题补充：
My friends and I had a good time with each other at the party last Saturday.
A. chat
B. chatted
C. chatting
D. to chat
答案：
A. chat
B. chatted
(答案→)C. chatting
D. to chat
解析：根据语境可知此题考查的重要句型结构是have a good time doing sth表示开心做某事，此句的含义是上周六和我的朋友在聚会上都玩的非常高兴，故选C
