simple words

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Across
  1. 2. preposition for inside
  2. 3. synonyms for two
  3. 6. 3 letter conjunction
  4. 8. Has a trunk
  5. 9. beginning of official
Down
  1. 1. Large marsupial
  2. 3. article
  3. 4. Likes to chase mice
  4. 5. Flying mammal
  5. 7. Man's best friend