I will attend a friend's luncheon party tomorrow.

We hold a luncheon meeting once a month.

I will participate in the exhibition held in Tokyo next week.

I plan to go to a concert tonight.

My family are believers of the Orthodox Church.

I am a member of that research association.

We held a celebration to celebrate his promotion.

Will you join our off-meeting next week?

The election for the members of the Metropolitan Assembly is approaching next week.

We discussed the new project at the symposium.