他们组织了一场慈善活动，为医院筹集资金。

They organized a charity ___function to raise funds for the hospital.

近600人聚集在我主要的婚礼庆典上。

Almost 600 people gathered at my main wedding ___function.

年度晚会是一个要求穿黑领带礼服的正式社交活动。

The annual gala is a formal ___function that requires black tie attire.