Answer:
usted
Explanation:
because you are taking to an adult so you usually talk formally to adults if younger
Answer:
1. El sobrino de Rosa <em><u>sabe</u></em> cómo leer y escribir.
2. José y Laura <em><u>conocen/visitan</u></em> la ciudad de Barcelona.
3. No <em><u>entrar</u></em> en el dormitorio de estudiantes.
4. yo <u><em>no se sobre</em></u> el profesor de literatura.
In my class, the clock is on the blackboard. Students' desks are in front of the teacher's desk. The bin always next to the door. The teacher in front of the students. My companions and I attentive in all classes.