出于安全考虑，组织者取消了节日活动。

The organizers ___called ___off the festival due to safety concerns.

我们不得不在最后一刻取消会议。

We had to ___call the meeting ___off at the last minute.

婚礼被取消了，因为这对夫妇改变了主意。

The wedding was ___called ___off because the couple changed their minds.