完形填空。阅读下面短文，选择最佳作案。（每小题1分，共10分）
The Great Wall of China has a history of over two thousand years. It runs from the east to the west in North China . It is about 6,300 kilometers    46      . It is often   47           “The Ten-thousand- Li Great Wall”. It is one of the “Seven Wonders” of the ancient world.
The Great Wall is    48      for ten men to walk side by side. Horses can also run along it, too. The Great Wall    49     stones and bricks(砖). There are huge stones on       50     side and on the highest part. But now some sections of it are worn out.
There are tall watchtowers along the Great Wall. Once upon a time, the soldiers kept    51      the enemies(敌人) in the watchtowers day and night. They made   52     on the towers to   53     each other when the enemies came.
Nowadays we don’t use the Great Wall to keep away the enemies any more. It is a famous place of  54     to all the people in the world. Every year  55      people come to visit it from all over the world.

A． wide B．tall C．long D．high

A． calling B．call C．called D．calls

A． enough wide B．wide enough C． more enough D．too enough

A． was made of B．was made from C．was made in D．was made by

A． both B．all C．each D．either

A． seeing B．watching C．looking D．reading

A． fire B．a kite C．a face D．a toy

A． tell B．talk C．speak D．say

A． interested B．interesting C．interest D．interests

A． thousand B．thousands C．thousands of D．thousand of