他要求加薪是完全合理的。

He's perfectly ___justified in asking for a salary increase.

最后，我强烈建议采取措施解决问题，并认为我们有理由要求部分赔偿。

Finally, I would strongly recommend that steps are taken to remedy matters and feel we are ___justified in requesting partial compensation.

出于安全考虑，取消活动的决定是合理的。

The decision to cancel the event was ___justified due to safety concerns.