* Write the correct form of the words in brackets.
1. The Apollo 11 moon landing was a ……………………achievement. (history)
2. A Mars ……………………is a place that humans can live in on Mars. (habitable)
3. One of the basic ……………………to join NASA is American citizenship. (require)
4. The astronauts are performing NASA’s first routine ……………………outside the International Space Station.(maintain)
5. John Young was one of NASA’s most ……………………astronauts and the first astronaut to fly into space six times. (experience)
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1) Astronaut
2) habitat
3) orbiting
4) weight
5) maintenance
6) successfully
7) harmonically
8) requirements
9) experienced
10) historical
1. The first ___astronaut____ to study the surface of Mars was Galileo Galilei. (astronomy)
2. A Mars ___habitat____ is a place that humans can live in on Mars. (habitable)
3. The space tourists will spend two days traveling to and from the ____orbiting___ space station. (orbit)
4. The sensation of ____weightless___ , or zero gravity, happens when the effects of gravity are not felt. (weigh)
5. The astronauts are performing NASA’s first routine __maintenance_____ outside the International Space Station. (maintain)
6. On 5 October 1957 the Soviet Union ___succeed____ in putting the first man made satellite into orbit around the Earth. (success)
7. The astronauts from many nations worked ___harmol]nically____ together to accomplish their work. (harmony)
8. One of the basic ___requirements____ to join NASA is American citizenship. (require)
9. John Young was one of NASA’s most ___experienced____ astronauts and the first astronaut to fly into space six times. (experience)
10. The Apollo 11 moon landing was a ___historical____ achievement. (history)
1. will live
2. Have you ever lived
3. will show
4. is drawing
5. won't drive, will drive
6. to live
7. happen
8. cooking / cleaning
1 will still be used
2 will live
3 to study
4 had already gone
5 were - would think
6 will be introduced
7 were working - to find
8 to fly
1,historic
2,required
3,requirements
4,maintenance
5,experienced
1, historical
2, habitat
3, requests
4, maintainment
5, experienced