Answer:
During their time in ‘Secret Annex’, the Franks and the van Daans had very limited contact with the outside world. Their only means were the hidden radio in the private office and their Dutch friends who brought news of the outside world. Broadcasts from England could be heard on the radio and the Franks and the-van Daans heard the radio every evening after 7.30 pm, when the office was closed for the day