Use "book bag" in a sentence

1. On October 5, 1960, Manuel had just finished conducting a Bible study and was standing on a street corner chatting with some fellow believers when a member of the secret police accosted him and asked him to open his book bag.

Le 5 octobre 1960, Manuel venait juste de terminer une étude biblique et bavardait au coin de la rue avec d’autres Témoins, lorsqu’un membre de la police secrète l’accosta pour lui demander d’ouvrir sa serviette.