题干
英国的史密斯(Smith)先生和他的朋友打算明天游览长城。假如你是他们的导游，请你根据以下提示写一篇英语短文，为此次导游任务做准备。
提示：
①世界上最长的城墙；
②约4～5米宽，最宽处可供五匹马或十个人并行；
③2700多年前，古代皇帝为保卫国家命人修建长城，后秦始皇等命人修整。
要求：要点齐全，可适当发挥，90词左右。
答案(点此获取答案解析）
One possible version：
The Great Wall is the longest wall in the world. There are no other man—made objects as big as it. It is about 4 to 5 meters wide .At the widest part, five horses or ten men can walk along it side by side.
It has a long his
B. 
C. 