dear lily,

i an sorry to hear that you are ill as a result of going on diet.You shouldn't have eaten so little food.In fact,you'd better do more sports and build up your body.I am writing to tell you what you should do to recover you health.

Above all,you should have a wholesome diet by eating more vegetables and fruit because they rich in vitamins and fibre.Eat less cheese and chocolate which contains much sugar and fat which will make you fat.In addition,you should exercise regularly and have enough sleep.Don't be too tired.What's more,keeping happy and a balanced diet are as important as sports.

i look forward to seeing a heathy lily soon.

yours Li Hua