问题补充：
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 kilometers36_ . It is often 37 “Ten- -thousand-Li Great Wall”. It is one of the “Seven Wonders” of the ancient world.
The Great Wall is wide enough for ten men to walk 38 . Horses can also run along it, too. The Great Wall 39 stones and bricks（砖）. There are huge stones on 40 side and on the highest part. But now some sections of it are worn out.
There are tall watch-towers alone the Great Wall. Once upon 41 time, the soldiers kept watching the enemies（敌人）in the watch-towers day and night. They made 42 on the towers to 43 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 interest to all the people in 44 . Every year 45 people come to visit it form all over the world.
【小题1】A. wide B. tall C. long
【小题2】A. calling B. call C. called
【小题3】A. side by side B. one by one C. one after another
【小题4】A. was made of B. was made from C. was made in
【小题5】A. both B. all C. each
【小题6】A. an B. a C. the
【小题7】A. fire B. a kite C. a face
【小题8】A. tell B. talk C. speak
【小题9】A. Asia B. the world C. Europe
【小题10】A. thousand B. a few thousand C. thousands ofC 解析：考查常识长城多长，故选C项。
答案：
(答案→)C 解析：考查常识长城多长，故选C项。
解析：
【小题1】考查常识长城多长，故选C项。
【小题2】根据空前的is知是要用被动语态，故选C项。
【小题3】考查习惯用法词组side by side“并排的，肩并肩的”。
【小题4】考查固定用法“由---制成的”，能看出原材料用be made of。
【小题5】根据side，其前不能用both和all。
【小题6】考查固定词组“很久很久以前”once upon a time。
【小题7】考查习惯用法make fire“生火，点火”。
【小题8】考查习惯用法tell each other”彼此转告” 。
【小题9】“对全世界的人来说它是一处著名的名胜古迹。”，故选B。
【小题10】“数以千记的”的正确的表达方式为“thousands of”。当数词后跟of时，数词应用复数形式。
