Unit 7写作练习你正在北京度假!请参考2b及以下范文,写一篇60字以上的作文,按照明信片的格式书写。问候你的朋友,说说你在做什么,你的心情,并表达你的思念等等。Dear Lucy,Hows it going, my dear friend? I am having a great time visiting my grandfather in Shanghai. Its still summer time, so my family and I are on a vacation. I am sitting on the sofa and drinking apple juice right now. Its so happy to enjoy my life like this. There are lots of shows on TV, and I dont know what to see. The weather here is so hot, I really want to go swimming. I remember there is a sw