He had to take the medicine three times a day, so as to be the pain in the leg. A. far fr

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A. far from
B. away from
C. apart from
(答案→)D. free from
解析：句意为：他不得不一天三次吃这种药，为的是摆脱腿的疼痛。be far from 远离----；be away from
离开----；apart from 除---之外，远离---；be free from摆脱---，免于---；故答案应为D。