The Great Wall of China is one of the greatest wonders of the world．With a （1） 　 　of more than 2，000 years， some parts of the Great Wall have disappeared．（2） 　 　， it is still a very popular place of interest．

It is the （3） 　 　wall ever built． It is about 8 meters high． The top is 8 meters wide and it （4） 　 　even wider at the bottom． It is made （5） 　 　stone and brick． People built it by （6） 　 　and it took a long time to finish．

No one knows（7） 　 　when the building of the Great Wall was started． It is believed that the wall was built to （8） 　 　parts of the country in the old days． It also made people live a（n） （9） 　 　life．

Today， many of the visitors go to see the Great Wall．（10） 　 　they stand on top of a tower and look down on this wall， they can't help saying，"Wow， that's fantastic!"

（1）A． number	B． purpose	C． history	D． choice
（2）A． But	B． So	C． And	D． However
（3）A． longest	B． shortest	C． farthest	D． biggest
（4）A． needs	B． gets	C． spends	D． sounds
（5）A． from	B． into	C． by	D． of
（6）A． hand	B． accident	C． machine	D． mistake
（7）A．usually	B．normally	C．exactly	D．luckily
（8）A．provide	B．protect	C．search	D．produce
（9）A．smart	B．awful	C．terrible	D．peaceful
（10）A．Before	B．Unless	C．When	D．Though