Spelling homework crossword puzzle

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Across
  1. 4. An intervening period of time.
  2. 5. Take part in an activity without invitation.
  3. 6. Act in such a way as to have an effect on another.
Down
  1. 1. A global system of interconnected computer networks that uses the Internet protocol suite.
  2. 2. Stop the progress of of a process or activity.
  3. 3. Existing or traveling between cities.