1. Neil Armstrong stepped ____ on ____ on 20th July 1969 and then he declared “One small step ____ , one giant leap ____ “.2. Since then, people have been dreaming about creating ____in space . 3. These ideas have just been fantasy , but now scientists say that ____ can help people to survive . 4. Is space ____ really possible ?5. There is only one ____ of this problem - to move to space stations ____. 6. Astronauts have already been living on NASA’s International ____ since 2000 . 7. This station gets its power from ____, it generates ____n and even recycles ____r .8. But there is still a problem - all food and other supplies ____. 9. So , maybe colonizing the Moon could be ____ ? 10. But there is no ____ on the moon and it is ____ during 13 days of sunlight and  ____ during 13 days of darkness. 11. ____Steven Hawking believes that ____ is to look for Earth - like planets . 12. This costs an endless amount of money ____ . 13. But just imagine - if people had not given ____ money for his voyage to America , ____ probably would not even exist today !

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