Well done Abdulah
I observed that you fell in a mistake and hope you received my reply
You said: Don`t say = The man was absorbed at his work
but say = The man was absorbed in his work
The mistake is
We don`t say at his work but we say at work
So the sentence after the correction will be
The man was absorbed in work
The words like work, bed and home is alike Examples
I will go home
It`s too late, go to bed now
Remember this wise..... Who he makes no mistakes makes nothing
I want to correct you
that`s all
Thanks for your cooperation