"I'm sorry that I messed up on that paperwork on Monday. I guess I was just ..... at the switch," Matt said to his boss. (*) asleep (*) ignorant (*) crossed (*) watching
This is a companion discussion topic for the original entry at https://english.best/questions/11419,im-sorry-that-i-messed-up-on-that-paperwork-on-monday-i-guess-i-was-just-___-at-the-switch-matt-said-to-his-boss/