IV. Choose the word which best fits each gap. Are you a screenager? Are you (21)________ glued to the TV, texting your friends, chatting online, or perhaps trying to move (22)________ another level in one of your favorite video games? Well, if you are, you are in the majority. Most teenagers do almost (23)________ electronically. They watch digital TV, listen to music on a digital MP3 player, and (24)________ with friends through email, instant messaging, or by mobile phone. Teenagers even do most of their reading online now. When they need help with their homework, it’s often the Internet that they (25)________. Experts from all over the world worry that teenagers’ addiction to technology is having an effect (26)________ on their health and their behavior. In some countries, teenagers are getting help. In Asia, there are even boot camps (27)________ children receive psychological help and treatment. It’s (28)________ that these types of camps will become common in other countries in the future. 21. a. definitely b. constantly c. hardly d. finally 22. a. in b. off c. out d. up 23. a. everything b. something c. anything d. nothing 24. a. relate b. socialize c. join d. communicate 25. a. carry on b. get off c. turn to d. find out 26. a. either b. all c. both d. whether 27. a. which b. where c. what d. that 28. a. probable b. difficult c. comfortable d. satisfied