Last Day! and Bad day!

Is my last day working in here today,
And what bad thing happened to me is,
I LOST MY STAFF-CARD!

URGH! Whr did I put it,
I remember I brought down with me after being at the reception table,
And then I went to 10th Floor,
And then I put down something,
And then what did I do?
I don't remember much,
And then I went down to my mom's car,
For another moment,
I look for my staff-card in the car,
I just found that I lost it,
Whr will it be!!!

I can't remember much!!!
Ah!!! Who can let me know????

[THE END]