Complete the sentences with the words in 3.
1. There is a _____ that we might visit Mars in the near future.
2. The main character in the film is a boy who makes friends with some _____ from a planet.
3. Dogs are more social _____ than cats.
4. These soldiers were punished because they didn’t obey their _____.
5. Some people _____ sending spaceships to explore other planets.
1. possibility
2. aliens
3. creatures
4. commander
5. oppose
1. possibility
2. aliens
3. creatures
4. commander
5. oppose