You have received a letter from your English-speaking pen friend,

…My mum still can’t download new music into her mobile phone. She says when she was young, there were no mobile phones at all. I just can’t believe it!…

... What do you use your mobile phone for? Can you do without your mobile phone and why? What other digital do you find the most important for you?...

Write him a letter and answer his 3 questions. Write 100–120 words. Remember the rules of letter writing.