Final answer:
The correct command form to complete the sentence is 'limpia'.
Step-by-step explanation:
The correct command form to complete the sentence is limpia.
The sentence is asking Alex to clean their room. In Spanish, when giving a command to a single person, you use the imperative form of the verb. In this case, the verb is limpiar (to clean) and the command form for tú (you) is limpia.
Therefore, the correct sentence should be: 'Oye, Lupe, limpia nuestro cuarto hoy.'
Learn more about Spanish verb conjugation