Catch 22 clearance??
How are we meant to handle this (am I missing something??)
ATC says "Line up" - so you do - in a Cessna 152. Enter the runway, point in the right direction and watch the jet ahead accelerate into its take off roll.
Then, just before the point of rotation of the jet, ATC says "Cessna 152, cleared immediate take off, no delay, aircraft on short final has a landing clearance, caution wake vortex from the departing (whatever)."