You have received a letter from your english-speaking pen friend mark who writes: guess what! all my friends are going to waterland" next week and can't swim! what shall i do? if i go with my friends, they will be teasing me all the time i have wanted to learn to swim for a long time but i feel embarrassed to start learning at my age. what would you advise me to how many lessons will i need? do? is it difficult to learn swimming? well, i'd better go now as my mum's calling me for dinner. write a letter to mark. in your letter answer his questions ask 3 questions about his favourite sports. 100-140 слов

Dear Mark, 
Thank you for your letter. You asked me for some advise about swimming.
In my opinion it's necessary to be able to swim. It's a must. Well, it's all right to start swimming at your age. I don't think that it's difficult to learn to swim, so you won't need to have a lot of swimming lessons! So I only wish you success! And what about doing some other sports? Do you like, for example, jogging?
Or can you play volleyball? What is your favourite kind of sport? 
That's all for now. Well, I'd better go now as my mum's calling me for dinner. 
Keep in touch.
Best wishes,
Alex