Imagina que eres un astronauta que llega a marte que crees que verás allí escribe palabras utilizando el guión al final de cada línea

Because it’s a specified person/thing

3. study 4.eat 5.play american football 6.write a card 7.practice piano 8.swim in the pool 9.paint a mural 10.listen to the band 11.dance at a party 12.drink milk 13.visit panama 14.open the card 15.prepare dinner 16.stay in the house 17.watch tv 18.write on the paper 19.study spanish 20.examine the paintings in the museum. i hope this : )

B) la educación física.

This is not enough information. what exactly is your question