Across
- 3. past simple for "walk"
- 6. Mount Everest or Kilimanjaro
- 8. Baikal or Victoria
- 10. "I'm _______ to visit my grandmother tomorrow at 3 pm."
- 11. a black and blue spot on your skin
- 12. Wisła or Thames
Down
- 1. a high temperature
- 2. past simple for 'catch'
- 4. a person who delivers mail
- 5. "It's hot in here! I _____ open the window."
- 7. past simple for "fly"
- 9. when harmful substances are added to the environment and then change it in a bad way