假定你是李华，你的英国笔友John来信向你了解你市垃圾分类的情况，请你给他写一封回信，内容包括：
1.介绍相关情况；
2.谈谈你的看法。
注意：
1.词数80词左右；
2.可以适当增加细节，以使行文连贯；
3.开头已给出，不计入总词数。
Dear John，
    I am so glad to receive your letter.                      
Yours，
Li Hua

【考点】提纲作文．

【答案】Dear John，
I am so glad to receive your letter.Knowing you're interested in waste sorting in my city，I'm writing to share basic information with you.
 These years，with the improvement of people's life，lots of rubbish，like leftover food or plastic bottles，has been produced.The waste sorting is a useful way to deal with this problem.Up to now，measures have been taken in our city.First，citizens know how to sort waste according to different elements.Second，different dustbins have been placed in public places so that citizens can leave their sorted waste.
 In my opinion，waste sorting can not only save time and money in dealing with rubbish but also improve the environment.
Yours
Li Hua