How to say paul is at bobs house in french

¨ill in the blank with the appropriate past-tense form of the verb in parenthesis. est-ce que tu __ au professeur ? (parler)¨

The noun that corresponds to the direct object pronoun is in parentheses. decide if the following sentence is grammatically correct: mes nieces l'a appele hier matin. (jacques)yes or nothe noun that corresponds to the direct object pronoun is in parentheses. decide if the following sentence is grammatically correct: mon frere l'a conduite hier. (la voiture)yes or no the noun that corresponds to the direct object pronoun is in parentheses. decide if the following sentence is grammatically correct: je les ai trouves dans mon sac-a-dos. (le livre)yes or no

Iwant to make sure im right on this one, the 'manger' should be 'mange' in this sentence right? "je manger la pizza."