用方框中所给单词的适当形式完成短文

用方框中所给单词的适当形式完成短文
know,take,history,hardly,only,sure,wonder,go,build,with(共10个）
Have you ever been to the Great Wall in China?It is one of the(1)----------of the world and it is(2)-----------to the people all over the world.
The Great Wall was(3)---------long ago.Everybody in China will tell you that it was built in Qin Dynasty（秦朝）.In fact,it(4)--------a long period of time in China's(5)-----------.We can(6)----------tell you how many years it took.We don't know how many stones were used to build the wall.We don't know how many people died in building the Great Wall.We can(7)-----------say that it was built(8)-----------the blood and sweat（血汗）of the Chinese working people.
The Great Wall has stood there for years and years.It is the pride of the Chinese nation.If you have a chance（机会）(9)------------to China some day,be(10)----------to go there and have a look at the great wonder.