Fill in the blanks with opposites and complete the crossword and complete

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Across
  1. 4. The trunk is heavy, the bag is ______(5)
  2. 6. The boy is young , the man is _____(3)
Down
  1. 1. Stone is hard, cotton is ______(4)
  2. 2. Milk is hot, ice-cream is _______(4)
  3. 3. The hare is fast, the tortise is slow(4)
  4. 5. The boy is sad, the girl is ________(5)