5. Use the words in brackets in the correct forms. Love to watch TV? Play video games? Text (you) friends? It isn't easy to get away from 2. (this) electronic devic- es. An average teen 3. (spend) more than 7 hours a day and more than 50 hours a week in front of a TV, computer, or cell phone screen. No doubt, this screen time can be fun. The problem 4. (be) that too much screen time can be harmful for teen health. A lot of studies already (do) on this prob- lem. In 2010 American scientists found out that teens who 6. (spend) the most time in front of a screen had the 7. (great) rise in body fat. TV and other screen time replace physical (activity) you could be doing - like riding your bike or taking a walk. Doctors seriously 9. _ (worry), as using a computer can cause back, neck and shoulder pain, eyestrain, and injuries of your hands and wrists. One of them 10. (call) "gam- er's thumb". The continuous using your thumb to press the keypads can cause discomfort and pain at the base of the thumb.

Here are the sentences with the appropriate forms of the words in brackets: 1. Love to watch TV? Play video games? Text (you) **your** friends? It isn't easy to get away from 2. **these** electronic devices. An average teen 3. **spends** more than 7 hours a day and more than 50 hours a week in front of a TV, computer, or cell phone screen. No doubt, this screen time can be fun. The problem 4. **is** that too much screen time can be harmful for teen health. A lot of studies already 5. **have been done** on this problem. In 2010 American scientists found out that teens who 6. **spend** the most time in front of a screen had the 7. **greatest** rise in body fat. TV and other screen time replace physical 8. **activities** you could be doing - like riding your bike or taking a walk. Doctors seriously 9. **worry** as using a computer can cause back, neck and shoulder pain, eyestrain, and injuries of your hands and wrists. One of them 10. **calls** "gamer's thumb". The continuous use of your thumb to press the keypads can cause discomfort and pain at the base of the thumb.