最近发生安全漏洞后，整个办公室都一直处于紧张不安的状态。

After the recent security breach, the entire office has been ___on ___edge.

随着期末考试临近，他忍不住感到紧张焦虑。

With the final exam approaching, he couldn't help but ___be ___on ___edge.

生活在冲突地区意味着这家人长期处于担惊受怕之中。

Living in a conflict zone meant the family was constantly ___on ___edge.