C. must sent 41. Most of Tommy 's friends have got a Playstation, Xbox, or other __ D. philight have sent D. could send A. bluetooth headset C. game console D. memory stick B. camcorder 42. Children are spending so much time on tablet computers that they are becoming addicted __ them A. to B. with C. in D. on 43. Teens are __ with Instagram Snapchat and probably a bunch of apps that adults don't know about. A. interested B. sensitive C. aware D. obsessed 44. Anna: Let's chat online. Bill: __ A. Not at all. B. Thanks. C. Never mind. D. Good idea. 45. Daddy: Bob, it's going to rain. Why not take a raincoat with you? Bob: __ A. You're welcome Daddy. B. Don't mention it , Daddy. C. Forget it, Daddy. D. All right, Daddy. 46. Although Mike is a child, he's aware of what he should do and responsible enough for his studying. (O) A. careless B. trustworthy C. carefree D. diligent 47. Lack of confidence prevents young people from making success. (D) A. doubt B. insecurity C. pessimism D. trust 48. Danny first posted his selfie on Facebook when he was fifteen and soon became obsessed with reading h friends' comments (C) A. opinions B. remarks C. information D. words 49. Many teenagers relax in the evenings in spite of having large amounts of homework. (C) A. enjoy B. unwind C. calm down D. recharge 50. Katie couldn't get the job because she wasn't confident. A. It was because of Katie's lack of confidence that she couldn't get the job. B. If Katie was confident, she could get the job. C. Katie wished she were more confident because she couldn't get the job. D Not getting the iob. Katie wasn't confident.