Many teens think they are addicted to cell phones, and they (1)__________ act like it. In one study, teens aged fifteen to nineteen describe themselves as addicted to their phones, and in another, 30 percent say they’re (2)__________ when they can’t use it. Cell phone use, like drugs and alcohol, may act on the reward centers of the brain. When the brain gets its perceived reward - whether it’s heroin, chocolate, (3)__________ the fun of texting two thousand times a month on average - it wants a do-over, again and again and again. Suddenly, a behavior is born. Psychologists who have studied cell phone use, particularly texting, by teens, report that it is (4)__________ to anxiety, behavioral problems, distraction in school, repetitive stress injury, and sleep deprivation. In Russia, scientists and government officials have advised that anyone under the age of eighteen (5)__________ not use a cell phone. In France, there’s a (6)__________ against marketing mobile phones to young children. Parents of both preteens and adolescents need to set and (7)__________ rules for teen cell phone use. Don’t be afraid to ground any child’s cell phone use - by taking it away for a day or two (8)__________ he or she ignores reasonable rules! 1. A. possibly B. mainly C. certainly D. specially 2. A. depressed B. impressed C. delighted D. worried 3. A. rather B. and C. but D. or 4. A. leading B. resulting C. causing D. bringing 5. A. might B. should C. will D. can 6. A. method B. plan C. order D. ban 7. A. break B. observe C. enforce D. establish 8. A. whether B. if C. when D. whereas