完形填空。(10分) 根据短文内容,从A、B、C、D四个选项中选出一个能填入相应空格内的最佳答案。 The Great Wall in China is known to people all over the world. It 16 the Ten- Thousand-Li Great Wall in Chinese. Do you know the famous Chinese sayi ng “He who does not reach the Great Wall is not a 17 man.”? The Great Wall is 18 wall in the world. It is more than 6,000 kilometres long, and 19 four and five metres wide. In most places it is wide enough for five horses or ten men 20 side by side(并排) along the top. It was very 21 to build such a great wall without our modern machines. All the work had to 22 by hand. Many people were made 23 the wall away from their homes. Thousands of them 24 and were buried(埋葬) under the wall. The Great Wall was made not only of stone and earth, but also of the flesh and blood(血肉) of 25 men. ( )16.A.calls B.is calling C.is called D.called ( )17.A.good B.true C.important D.clever ( )18.A.longer B.higher C.the longest D.the highest ( )19.A.between B.among C.at D.with ( )20.A.walk B.walked C.walking D.to walk ( )21.A.easy B.difficult C.interesting D.quick ( )22.A.do B.done C.be done D.was doing ( )23.A.work on B.to work on C.worked on D.working on ( )24.A.die B.dead C.death D.died ( )25.A.millions B.millions of C.three million of D.three millions