Answer:
A
Explanation:
Friction because it focuses on force that you use to push the chair and friction is stronger than inertia.
first blank: limpiaba, second blank: saca, so it's the 2nd one.
1) Sabe
2)conozco
3) conoces
4) Saben
5)conocemos
6)Sabes
A . Aprendiesen
That's how they said in Spain and is the only that sounds good
