They prepare for and attend Xiaoming's birthday party, give a gift, sing the birthday song, and celebrate with cake and games.
下周是我最好的朋友小明的生日。
Next week is my best friend Xiaoming's birthday.
他邀请我们去他家参加生日聚会。
He invited us to his house for a birthday party.
我需要给他准备一份生日礼物。
I need to prepare a birthday gift for him.