Read about Joanna's problem and write a letter to give her some advice. Прочитайте о проблеме и дайте советы. Например:

Dear Joanna,Having read about your problem I thought about myself. Funny, but I wasn\'t slim too. And I hated PE lessons as you. One day my best friend said that fatty people were kinder than the slim ones. And I smiled. This phrase gave me some fairy force. But inspite of this I began going in for sports. So if I were you now, I\'d just get my sports kit and go to the lessons. Never give up if you believe in yourself. Now I\'m a slim, kind-hearted girl, and I have a boyfriend who loves me despite of any reasons.Be yourself anytime, and you\'ll be happy I\'m sure.With love, your pen-friend, Lily.