.............. . A) most deaths of lung cancer sufferers are largely due to that habit
B) innovative methods have been devised to break the habit
C) heavy smokers are alleged to be more likely to develop lung cancer than light ones
D) it is impossible to see someone who is a lung cancer sufferer
E) the young are urged not to smoke by ads and public announcements
236- Passive inhalation ................... . A) is considered as one of the most significant factors of lung cancer
B) used to cause more deaths previously than it does now
C) has nothing to do with those who smoke in public places
D) is thought to be responsible for two percent of the deaths of lung cancer sufferers
