Across
- 1. Superman is a superhero
- 2. that man has superhuman strength
- 3. The subway is underground
- 5. army subordinates help each other
- 7. Submarines go underwater
- 8. means to watch or supervise somebody
Down
- 1. to take the place of a person or a thing
- 2. The boat submerged
- 4. the heading on the newspaper
- 6. many superheroes have a superpower