我们总是用一顿特别的晚餐来庆祝我们的结婚纪念日。

We always celebrate our wedding ___anniversary with a special dinner.

明天是革命爆发五十周年纪念日。

Tomorrow is the fiftieth ___anniversary of the revolution.

他们正在旅行，以庆祝结婚十周年纪念日。

They are taking a trip for their 10th wedding ___anniversary.