This modern __54__ for pain management has led to a wealth of innovative treatments which are more effective and with fewer side effects than ever before. Decades ago, there were only a __55__ number of drugs available, and many of them caused __56__ side effects
in older people, including dizziness and fatigue. This created a double-edged sword: the medications helped relieve the pain but caused other problems that could be worse than the pain itself.
A) result I) determining
B) involves J) limited
C) significant K) gravely
D) range L) complained
E) relieved M) respect
F) issues N) prompting
G) seriously O) specialize
H) magnificent
Unit 4
47. L 48. G 49. I 50. D 51.O
52. F 53. B 54. M 55. J 56.C
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