Words happy

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Across
  1. 1. hard to do, not easy
  2. 3. the different moon shapes we see
  3. 6. a very large object that moves around the Sun
  4. 7. no-one, not anybody
  5. 10. opposite of back
Down
  1. 2. holes in the ground made from large rocks hitting the ground
  2. 4. past tense form of hear
  3. 5. belonging in the past, precedes now
  4. 8. belonging to you
  5. 9. a ball of rock that moves around Earth