Dear Jack,
Thank you for your last letter.You asked me how to keep fit in your letter and I have several good suggestions for you.First and foremost,take exercises every day.Jogging in the morning would be a good choice.Second,eat more healthy food like vegetables and fruits and try to avoid meat and junk food though these things taste well.Third,drink a bottle of milk every day,which is a good method to keep healthy.Four,do not waste your time watching TV.Save your time to have more sleep and you need to sleep for at least eight hours.
Best Regards
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