应用文写作A possible version:Dear Max,How are you these days?I'm very sorry to hear that you have hurt your right foot whilerunning,and extremely concerned about you.In fact,there are some measures you can take to protect yourself better while running.First of all,it's strongly suggested that you should wear loose sportswear and a pair ofsneakers.Moreover,if I were you,I would do some warming up exercise before running,which can prepare our body better.Eventually,bear in mind that you can take it easy byrunning on a regular basis.Hopefully,you've made a remarkable recovery!Yours,Li Hua