A. To keep awake and attentive to do their jobs.B. To reduce the tension to meet their clients.C. To get along well with smokers around them.D. To keep their bodies warm by smoking.
A. To keep awake and attentive to do their jobs.
B. To reduce the tension to meet their clients.
C. To get along well with smokers around them.
D. To keep their bodies warm by smoking.