Vocabulary review

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Across
  1. 1. To take control of a plane, especially using violence
  2. 3. A brother or sister
  3. 6. A … pig is someone who’s used in a scientific experiment
  4. 7. An … silence is an embarrassing, uncomfortable silence
  5. 9. Very surprised
  6. 11. An extra benefit in a job
  7. 12. Materials for writing and for using in an office
Down
  1. 1. Very embarrassed
  2. 2. When two people get on like a house on …, they get on very well
  3. 4. You might wear these in a swimming pool to protect your eyes
  4. 5. To attack someone and steal their things
  5. 7. To kidnap someone
  6. 8. An informal word meaning believe or think
  7. 10. A child between 1-3 years old
  8. 13. A noisy argument