... atmosphere and the air becomes contaminated and unpleasant to breathe . We depend for life on the air we breathe. As that air becomes more and more polluted ,hazards to heath increase .Today we have ... by the Anglo- Saxons A. which B. it C. what D. this 6. It is the English language is used as the language of aviation, international sport. A. which B. what C. that D. why 7. Nowadays, there are ... America, or Australia, many boys and girls study their own language, which is English, and mathematics… and another language, perhaps French, or German or Spanish. Many adults learn English, because...