For thousand of years men couldn’t fly. It was 1. ______

游客2025-07-24 11

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. [br]

选项

答案 a→an

解析

转载请注明原文地址:https://tihaiku.com/zcyy/4174404.html

相关试题推荐

随机试题

最新回复(0)

For thousand of years men couldn’t fly. It was 1. ______

—Youcouldn’thavechosenanygiftbetterforme.—______.A、Oh,don’tcomplaina

Tedcouldn’tremembertheexactdateofthestorm,butheknewitwas______Sun