Hello,<br/><br/><br/> Which phrase would be more correct? -'While he was answering it' or 'when he answered it.'<br/><br/> "While Tom was reading in his bed last night, his phone rang. When/While he was answering it, the caller hanged up.'<br/><br/> If I am not mistaken 'when' is not used in past continuous, is it? Should it be 'hung' or 'hanged'?<br/><br/> Thanks