摘要：257] Follow the directions on the bottle carefully when . [译文] 仔细地按照药瓶上说明服药. A. you will take the medicine B. taking the medicine C. to take the medicine D. taken the medicine [答案及简析] B. 主句中没有主语是祈使句.用现在分词表示时间语主语(you)一致.

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