Для выполнения задания необходимо вставить подходящие по смыслу слова в пропуски.
Ответ: I (1) was reading a book when I (2) heard something in the basement. First I (3) was not afraid of it. Some time later I (4) called my father on his mobile phone and (5) heard the music in the basement. But when I (6) went into the basement, I didn't see him there. The music (7) wasn't, either. Only two boxes (8) were on the floor.