Match the words from the box with the definitions. Then press "Check" to mark your answers.
aggressive oasis alternate agony economy guardian courteous extraordinary futile hoax
  1. [noun] an area in a desert where plants can grow. The plants are fed by water from a spring or well.
  2. [noun] a person who guards or protects.
  3. [adjective] unlikely to produce or incapable of producing a desired result; ineffective; useless.
  4. [adjective] being polite or showing good manners.
  5. [adjective] mean and unfriendly in one's actions; ready to argue or start fights.
  6. [noun] great or intense pain and suffering in the mind or body, usually over a long period of time.
  7. [adjective] very unusual; far beyond the ordinary.
  8. [noun] an act meant to trick or deceive.
  9. [noun] the system of making and spending money and producing goods and services within a certain place, such as a state or country.
  10. [verb] to take turns (usually followed by "with").