Day students and Boarders have different ID colors
Day students have a different ID color from Boarders'.

I urgently did an inventory check on ID card materials right after receiving an/the email from the Finance sent, saying they would close the school budget soon

I worry about her health
I am worried about her health

I reported him the result of the work
I reported the result of the work to him

I was writing an report email at that time  **