A:why are you eating so little? B:I'm on a diet. A:oh! It's to bad for your health.why do you do that? B:Because I am too fat , other calssmetes always laugh at me , I want to lose weight. A:I think you can do sports after school,it can make you relax and it can help you lose weight best.If you like,you can run on the playground with me every day, B :That's a good idea! Thank you very much!辛苦打的…不知道可以不?