Ответ: 1. What kind of flying machines did Leonardo da Vinci design?
Ответ: He designed many 'ornithopters' - machines with wings that go up and down like a bird.
2. How did the Montgolfier brothers make their ballons fly?
Ответ: They did this by making a fire under a silk bag so it filled with hot air.
3. Which animals travelled on the first ballon flight?
Ответ: First passangers were a sheep, a chicken and a duck.
4. What did George Cayley design?
Ответ: Between 1799 and 1850, and Englishman called George Cayley designed many gliders.
5. How far did the ten-year-old boy fly?
Ответ: Some people say, that a ten-year-old boy flew in this boat with weels for a few metres.
6. How did Otto Lilienthal die?
Ответ: After more than 2,500 flights, Otto Lilienthal died in an accident when he was flying one of his gliders.
7. Where did Orville and Wilbur Wright come from?
Ответ: Two brothers Orville and Wilbur Wright are were from Ohio, USA.
8. What did they begin doing in 1902?
Ответ: In 1902, they started designing an engine for it.
9. How many seconds did their first flight take?
Ответ: Their first flight lasted 12 seconds.
10. Why did Wilbur stop his flight in 1905?
Ответ: Because he had no more fuel.
Объяснение: Все ответы на вопросы я нашёл в самом тексте.