Guess who I am

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Across
  1. 2. I am full of emotions both happy and sad
  2. 4. Without me you wouldn’t the colour, condition etc. of anything
  3. 6. I replace the names when they occur too often
  4. 7. My presence adds dynamism and character to your writing
Down
  1. 1. I just state the normal
  2. 3. I have a questioning mind.
  3. 5. I help to tell you the time of action
  4. 8. I give commands or orders