音乐会被推迟，将比预定时间晚两小时开始。

The concert has been postponed and will begin two hours later than ___scheduled.

确保在预定的办理登机手续时间到达。

Make sure to arrive at the ___scheduled check-in time.

项目截止日期定在下周五。

The project deadline is ___scheduled for next Friday.