根据短文内容和所给中文提示，在空白处写出单词的正确形式（每空限填一词）。
The Great Wall of China
The Great Wall of China is one of the {#blank#}1{#/blank#} （古代的） wonders
in the world. Every year, it attracts millions of {#blank#}2{#/blank#} （旅行者）.
The Great Wall has a {#blank#}3{#/blank#} （历史） of more
than 2,000 years. It is about six thousand {#blank#}4{#/blank#} （千米） long from
east to {#blank#}5{#/blank#} （西） and is
about7 meters in {#blank#}6{#/blank#} （高度）. In many
places, it is {#blank#}7{#/blank#} （宽的） enough
for 10 men to walk side by side on top of it.
When you look at the Great Wall, you can't help
thinking how the Chinese people were able to build it without modern {#blank#}8{#/blank#} （机器）. In fact,
it {#blank#}9{#/blank#} （花费） millions
of people more than 10 years to build it and many people even lost their lives.
Today, as a {#blank#}10{#/blank#} （著名的） place of
interest, the Great Wall is known to people all over the world.
