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—What did the doctor say yesterday afternoon?

—He said, “______ on time, this medicine will be quite effective.”

A. Taking B. Being taken

C. Taken D. Having taken

C

【解析】

试题分析:考查过去分词及条件状语从句的省略。句意:昨天下午医生说什么了?他说,如果按时吃药,这种药是非常有效的。原句可改为:If it is taken on time, this medicine will be quite effective. 故选C项。

考点 : 考查过去分词及条件状语从句的省略

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