Affirmative and Negative sentences

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Across
  1. 1. _____ Is not good for sleeping
  2. 3. I am not (oposite of sad)
  3. 5. I'm a ______ student
  4. 6. The sky is full of:
  5. 7. My son is not as tall as
  6. 8. An elephant is: (Color)
Down
  1. 2. You can not use a car to (travel in the air)
  2. 3. Tom cruise is very:
  3. 4. I am happy when it's my (birth aniversary)