• In the white boxes below, type the words you hear. You will hear each word twice.
       (Remember to use the correct spelling and capital letters, etc.).
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

1. Scientists have that
2. a reduction in intelligence
3. scores for languages and
4. performance
5. published in a
6. verbal tests
7. to those who live in cities
8. currently the fourth highest
9. They the impact of air pollution
10. the of several years
11. There is no to solve this
12. take measures

Back to the air pollution lesson.

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