Question

this guy is \towing\ this plane! the man the plane, and the plane the man.
pushes on
pulls on
does nothing to

Explanation:

Step1: Analyze the action of towing

Towing involves a pulling force. So the man pulls on the plane.

Step2: Consider Newton's third law

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. So if the man pulls on the plane, the plane pulls on the man.

Answer:

The first blank: pulls on; The second blank: pulls on