40. It is cheap. It’s __________. (expensive)
 
41. __________ TV is available now. (interact)
 
42. The __________ between this computer and the others is good. (interact)
 
43. The __________ of TV is always fast. (develop)
 
44. Libraries are helpful in __________ children’s love for books. (develop)
 
45. The Internet has __________ developed nowadays. (increase)
 
46. The Internet is one of the most important __________ of our life. (invent)
 
47. Everyone has their __________ which are hardly recognized by themselves. (limit)
 
48. The website is not used for teenagers. It’s __________. (use)
 
49. Their __________ is always good. (communicate)
 
50. She is a __________ girl. (communicate)