on time, this medicine will be quite effective.A. TakingB. Being takenC. TakenD. Having

发布时间：2020-08-17 14:00:01

     on time, this medicine will be quite effective. 
A. Taking
B. Being taken
C. Taken
D. Having taken

网友回答

A. Taking
B. Being taken
(答案→)C. Taken
D. Having taken
解析：
C。this medicine 与动词take 为被动关系，故用过去分词。
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