Translate to french: at what time do you get up?

Can some one answer these questions for me ,

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

In this sentence should the 'de' be 'du'? "non, je ne fais pas de sport."