Lesson 1 back to the future

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Across
  1. 6. sick because bacteria has entered your body.
  2. 7. to do one time.
  3. 8. a road that is not wide.
Down
  1. 1. to run at full speed.
  2. 2. keep your body clean and healthy.
  3. 3. to suddenly show up.
  4. 4. to participate in the group, or team.
  5. 5. a large group of people in one area.
  6. 9. to be rich and prosperous.