根据版九年级英语上册Unit2 Lesson 10内容填空。 Welcome 1._____  China. Let me introduce something about the Great Wall  2._____you. The Great Wall is the longest 3._____ in the world.It has a  4._____  of over two thousand 5. _____ . It was very difficult  6._____ 7._____  such a great wall in the old times. It ismore than 7,000 kilometres 8._____ , 6~7 metres high and 4~5 metres  9._____.  10._____Someplaces, it is  11._____ enough for five horses or ten men 12._____   13._____  side by side along the top. Today it has become a place of 14._____no only to Chinese people, but also to people 15 ._____ 16 ._____ the world. All Chinese are 17 ._____ of it. I hope you'll have a good time 18 ._____ the Great Wall.