I need to concentrate on 'the task at hand'. [=the work I'm doing right now]
They appointed a 'task force' to review the situation.
This is not an easy 'task'. = This is 'no easy task'.
(..) Like a rat in a trap, gentlemen. You might have the wrong animal there, sir. You sure it was 'im? Bane says the Batman interfered, but the task was accomplished. What about the men they arrested? He said, and I quote, "They would die before talking". Where does he find these guys? (..)2012 The Dark Knight Rises