没有足够的座位给所有客人——我必须告诉组织者。

There aren't enough seats for all the guests - I have to tell the ___organizers.

我在英语语言学校担任社交活动组织者已有5年。

I have been working as a social activity ___organizer for 5 years at the English Language School.

会议组织者顺利处理了所有后勤工作。

The conference ___organizers handled all the logistics smoothly.