1.很抱歉我今天因为生病了不能去上班,有什么事情麻烦打我手机,明天我可以正常上班
I am sorry I could not go to work because of my sickness.Please call my mobile if anything urgency and I could go to work tomorrow.
2.很抱歉由于我今天请病假没在公司.你要的文件我明天上班后发给你好吗
I am so sorry that I am not in the company today because of my sickness.May I send you the document you need when I go to work tomorrow?