今天早上有三个人打电话请病假。

Three people ___called ___in ___sick this morning.

音乐会开始几分钟后，一位负责检查一切是否按时间表进行的后台助理打电话请病假。

A few minutes after the concert began, a backstage assistant ___called ___in ___sick who was responsible for checking whether everything is going well according to the timetable.

如果你感觉不舒服，应该打电话请病假，而不是来上班。

If you feel unwell, you should ___call ___in ___sick instead of coming to work.