Soft 'c' again

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Across
  1. 4. A round shape
  2. 5. To make a choice from a number of alternatives
  3. 7. A drug to treat diseases
  4. 8. A large town
  5. 9. A system of number that has tenths, hundredths and so on
Down
  1. 1. An inhabitant of a city or town
  2. 2. An event that happens by chance
  3. 3. A physical activity
  4. 6. Something exceptional
  5. 8. A place where films are shown publicly