Completa os espaços em brenco com (harmless, harmful, addict, addicted, addictive: a)my uncle is - to nicotine. he has smoking since he he was a teenager b) she was a drug - but she has been rehabilitated
c) cough mixture can be - if taken in very large doses
d) some young people believe that marjuana is - but this is not true
e) cocaine is highly -. if is very difficult to stop using it once you have​