--Dad, we are going to throw a party to enjoy ourselves on our graduation day.
---OK. .
A. Good luck
B. Congratulations
C. With pleasure
D. Have fun
网友回答
A. Good luck
B. Congratulations
C. With pleasure
D. Have fun
解析：考察交际用语。Ａ好运；Ｂ祝贺；Ｃ我的荣幸（答应对方做某事时所说）；Ｄ玩的开心。结合句意可知Ｄ正确。句意：—爸爸，在毕业那天我们要开一个聚会庆祝。—好的，玩的开心。