National Day is coming,and we can have a seven-day.My family are going to Hainan.It's a good seaside city.We are staying there for a week.We are going to the beach and going swimming in the sea.We're visiting Tianya Haijiao,Wanquan River and many other beautiful places.I think we'll have a good time there.
国庆节来了,我有七天的假期.我们一家去海南.那是一个美丽的海滨城市.我们在那里待上一个星期.我们去沙滩,还在海里游泳.我们游览“天涯海角”,菀泉河还有别的许多好地方.我想我们在那里会玩得很开心.
楼主自己再改改吧,再加上点内容就OK了