units 1,2,3 ???

123456789
Across
  1. 2. you can buy
  2. 4. this animal is a mammal and eats bananas
  3. 5. you can play videogames
  4. 6. you can send letters
  5. 9. this animal is a mammal and lives in sea
Down
  1. 1. you can see films
  2. 2. you can play tennis ...
  3. 3. you can use the computer
  4. 7. this animal is an amphibian ,four legs and colourfull
  5. 8. this animal is an amphibian , jumps and eats mosquitos