Answer:
1.-Tú <em>compartes</em> el almuerzo con tus amigos.
2.-Usted <em>corre </em>los viernes.
3.-Nuestro abuelo <em>vive </em>en una casa muy bonita.
4.-Los turistas <em>describen </em>sus experiencias.
5.-Tomás y yo <em>leemos </em>unos libros.
6.-Ustedes <em>deciden </em>estudiar ciencias.
Explanation:
This question it's about verbs so the only need we need to know its the person (I, you, he, she, etc) we are talking about and the time we´re doing it (now, past or future).
1.- This one is "you" and what you do everyday that's what make it "compartes"
2.-This one is also "you" but in a very formal way and it's something that you do regularly.
3.-This is "our" an its something that starts time ago but continues.
4.-"They" and what are they doing right now
5.-"We" and what we are doing right now
6.-Finally "You" for 2 or more people and what are they choosing.