2. 外语
  3. For thousand of years men couldn’t fly. It was 1. ______ too difficult. Birds are able to fly on their

For thousand of years men couldn’t fly. It was 1. ______ too difficult. Birds are able to fly on their

admin2012-05-08  104
问题     For thousand of years men couldn’t fly. It was                    1. ______
   too difficult. Birds are able to fly on their                      2. ______
   wings. It is very easy of them to fly.                             3. ______
   But men haven’t got wings. The first planes                        4. ______
   were gliders — planes without engine.                             5. ______
   The first plane with a engine was the Flyer.                       6. ______
   Two brothers, Wilbur and Orville Wright, building                  7. ______
   it. In December 17th, 1903, Orville lay on the bottom wing         8. ______
   of his plane and start the engine.                                 9. ______
   The Flyer was able take off and rose 10 feet and flew 120          10. ______
   feet. This was a great moment in the history of flying.
选项
答案In→On
解析
转载请注明原文地址:https://kaotiyun.com/show/p3wd777K
本试题收录于： 公共英语二级笔试题库公共英语（PETS）分类
0

公共英语二级笔试

公共英语（PETS）

相关试题推荐
随机试题
最新回复(0)