Условие:
Задание 2. Завершите предложения, используя слова из списка: Tobacco smoking, heart disease, don't smoke, affects, development of cancer, scientific studies, reduce
Since 1939, numerous have been conducted to determine whether smoking is a health hazard. Research teams have conducted studies that show that
is associated with a shortened life expectancy. Smoking is believed by most research workers to be an important factor in the of the lungs and throat. Smoking also the heart and blood vessels. Smokers die much more often from . Filters and low tar tobacco are claimed to make smoking to some extent safer, but they can only marginally , not eliminate the hazards. The majority of physicians say, "Give up smoking, if you - don't start!"