Starter unit

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Across
  1. 2. Plastic is a ... material in houses. It's not rare.
  2. 3. The opposite of useful.
  3. 6. Whales are not weak. They're ... .
  4. 8. My friends really like action movies. These film aren't boring. They're ... .
  5. 9. Maths isn't easy for me. It's ... .
Down
  1. 1. Tokyo isn't a quiet city. It's ... .
  2. 4. This laptop is not cheap. It's ... .
  3. 5. The opposite of dangerous.
  4. 7. The school is not near. It's ... .
  5. 9. Wash your hands! They're ... .