Grrr!間違いだらけ。。。でも書くことに意義有!!
Today I taught my successor how to calculate employee's salary.
Like me, she seemed to have difficulties in calculating social insurance premium.
There are only 4days left whenthat I can work except today.
I've never had such time when I don't engage in work a period of time not working since I graduated from my university, so I'm a bit nervous.
【!】This is more as native sounding.