unit 6

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Across
  1. 5. a way of thinking of sth
  2. 8. very different from each other and of various kinds
  3. 10. to be successful, strong ant healthy
  4. 11. to let sb or sth come out of a place
  5. 12. to keep going on and off as it shines or burns
  6. 13. containing or covered with oil
Down
  1. 1. to repair sth so that it looks as good as it did originally
  2. 2. a careful study of sth in order to find facts about it
  3. 3. to shout loudly to show support or praise for sb
  4. 4. a tube through which liquid and gases can flow
  5. 6. a device for examining sth by using light or X-ray
  6. 7. a regular rise and fall in the level of the sea
  7. 9. an area of water on the coast, protected from the open sea , where ships can shelter
  8. 11. an improvement in the condition or strength of