in his/her
Dans ses aliments, au milieu de son pain ou d'une pomme de terre, que sais-je ?
In his food, in the middle of his bread or a potato, what do I know?
La part de vérité dans ses propos est difficile à évaluer.
The degree of truth in his statements is difficult to assess.
Oui, du moins dans ses hauts, car nous manquons de combustible.
Yes, at least during its peak hours, because we’re running short on fuel.
Il ne permettait à personne de s'immiscer dans ses affaires personnelles.
He didn't allow anyone to interfere in his personal affairs.