Taking this medicine, if ______, will certainly do damage to your health, as the doctor advises.A.continuingB.continuedC.keepingD.to keep
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B解析试题分析:考查动词辨析及省略。continute 持续，继续；keep 保持，保存；从语义判断此处是指持续服用药物，所以排除C，D选项。从结构可知此处是状语从句的省略原句应该是if it is continued，所以B选项正确。句意：正如医生建议的，如果持续服用这种药物，你的健康将肯定会受到损害。
考点：考查动词辨析及省略。