Common errors with "ABSENT"

 It's a pity that you were absent from the training session
It's a pity that you missed the training session
It's a pity that you weren't at the training session
 be absent = not be present at something that you are officially supposed
.'to attend: 'Her teacher wanted to know why she'd been absent
miss = not be present at something: 'She's missed a lot of
classes this term because of illness.' 'I wouldn't miss Sandro's party for
(.the world!' (= I really want to go to it
be at = be present at something: 'John won't be at the meeting. He's had
.'to fly to Rome on business