书面表达。
根据下面的信息用英语写一封信。（50词左右）
1.寄信人：John
2.收信人：Mr.and Mrs.Smith
3.信件内容：
（1）感谢你们寄来的明信片，我非常喜欢它。
（2）我在北京一切都很好。中国人都很友好。我很喜欢中国的食品。
（3）我一周上五天课，上午四节，下午两节。我的同学们教我学中文，我教他们学英语。
他们都喜欢和我交朋友。
（4）请尽快回信。
范文：
Dear Mr.and Mrs.Smith,
Thank you for your postcard. I like it very much. I'm enjoying myself in Beijing. Chinese people are Very
friendly. I like Chinese food Very much.
I go to school five days a week. There are four classes in the morning and two classes in the afternoon.
My classmaes teach me Chinese and I teach them English. Thev like to make friends with me. Please write
back soon.
Yours,
John