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Across
  1. 3. a talk that is given to a group of people to teach them about a particular subject, often as part of a university or college course
  2. 4. help
  3. 5. a type of literature that describes imaginary people and events, not real ones
  4. 6. of or connected with seeing or sight
Down
  1. 1. using few words
  2. 2. a pleasant situation that you imagine but that is unlikely to happen