What is something that can be hazardous to use in public?
smallpox backpack guide dog influenza protective gear cigarettes smoking cell phones
A B C D E F G H
People who are distracted are hazards.
Using cell phones can be hazardous.
What is something that can be hazardous to use in public? (A) smallpox (B) backpack (C) guide dog (D) influenza (E) protective gear (F) cigarettes (G) smoking (H) cell phones