46. A. use B. origin C. expression D. meaning
45. A. hardware B. software C. operator D. speaker
44. A. Therefore B. Though C. However D. Anyhow
43. A. lots of B. plenty of C. lot of D. sort of
42. A. widely B. hardly C. seldom D. deeply
41. A. containing B. printing C. publishing D. expressing
40. A. job B. research C. survey D. search
39. A. persuade B. encourage C. convince D. believe
38. A. custom B. greeting C. habit D. proverb
37. A. damaged B. perfected C. learned D. ruined