Final answer:
The verb form that correctly completes the conversation is 'juego'.
Step-by-step explanation:
The correct verb form to complete the conversation is juego .
When answering the question "¿Qué haces normalmente el fin de semana?" (What do you usually do on the weekend?), the appropriate response is "Juego tenis con mi compañero de clase" (I play tennis with my classmate). The subject 'yo' (I) is implied, so we use the first-person singular form of the verb 'jugar' (to play), which is 'juego'.
In Spanish, verb forms change depending on the subject. 'Jugo', 'juega', and 'jugó' are incorrect forms because they do not match the subject 'yo'. 'Juegue' is also incorrect because it is a command form (imperative).
Learn more about Verb forms in Spanish