英语作文：北京是美丽的城市，她吸引着大批的中外游客前来观光旅游。上周，来自美国的格林先生一家来到

了北京。 请你根据信息描述一下他们的北京之行。
when : last week
where : beijing
weather : sunny
where they went : the great wall , the summer palace , tian'anmen square , the bird's nest
feeling : excited
字数60左右。

Beijing is a beautiful city. She attracted a large number of Chinese and foreign tourists to sightsee. Last week, Mr. Green family came to Beijing from the United States. Beijing weather is sunny. They went to the Great Wall, the Summer Palace, Tian'anmen Square and the bird's nest. They feel very excited.